㈠ 小学四年级脱式计算
出题目是吗?
(1)29X11-29=
(2)59-23+41-17=
(3)100X2+100X5=
(4)144/6X73= (/表示除以,以下同)
(5)27X40+986=
(6)286+24X66=
(7)1023-52X16=
(8)14X60=
(9)21X60=
(10)35X60=
(11)7X30=
(12)32X103-32x3=
(13)195x29+195=
(14)39x105+105=
(15)28x70=
(16)17x20=
(17)34x70=
(18)28x30=
(19)157x43-157x3=
(20)315x40=
(21)408x36+408x4=
(22)450x300=
(23)456/6=
(24)343/7=
(25)230x40=
(26)120X24=
(27)1.2×2.5+0.8×2.5 =
(28)8.9×1.25-0.9×1.25 =
(29)12.5×7.4×0.8 =
(30)9.9×6.4-(2.5+0.24)=
(31)6.5×9.5+6.5×0.5 =
(32)0.35×1.6+0.35×3.4 =
(33)0.25×8.6×4 =
(34)6.72-3.28-1.72=
(35)0.45+6.37+4.55
(36)5.4+6.9×3-(25-2.5)=
(37)2×41846-620-380 =
(38)4.8×46+4.8×54 =
(39)0.8+0.8×2.5=
(40)1.25×3.6×8×2.5-12.5×2.4 =
(41)28×12.5-12.5×20 =
(42)23.65-(3.07+3.65) =
(43)(4+0.4×0.25)8×7×1.25 =
(44)1.65×99+1.65=
(45)27.85-(7.85+3.4)=
(46)48×1.25+50×1.25×0.2×8 =
(47)7.8×9.9+0.78 =
(48)(1010+309+4+681+6)×12 =
(49)3×9146×782×6×854 =
(50)5.15×7/8+6.1-0.60625 =
(51)50+160÷40 (58+370)÷(64-45)=
(52)120-144÷18+35=
(53)347+45×2-4160÷52 =
(54)(58+37)÷(64-9×5)=
(55)95÷(64-45)=
(56)178-145÷5×6+42 =
(57)420+580-64×21÷28 =
(58)812-700÷(9+31×11)=
(59)38.85+14×(14+208÷26)=
(60)(6.8-6.8×0.55)÷8.5 =
(61)0.12× 4.8÷0.12×4.8 =
(62)(3.2×1.5+2.5)÷1.6=
(63)3.2×(1.5+2.5)÷1.6=
(64)45.6-1.6÷4= 5.38+7.85-5.37=
(65)46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
(66)47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
(67)48.10.15-10.75×0.4-5.7
(68)49.5.8×(3.87-0.13)+4.2×3.74 =
(69)50.32.52-(6+9.728÷3.2)×2.5 =
(70)51.[(7.1-5.6)×0.9-1.15] ÷2.5 =
(71)52.5.4÷[2.6×(3.7-2.9)+0.62] =
(72)53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6 =
(73)102×4.5 -2X4.5=
(74)7.8×6.9+2.2×6.9 =
(75)5.6×0.25=
(76)8×(20-1.25)=
(77)127+352+73+44=
(78)89+276+135+33 =
(79)25+71+75+29 +88
(80)243+89+111+57 =
(81)9405-2940÷28×21=
(82)920-1680÷40÷7 =
(83)690+47×52-398 =
(84)148+3328÷64-75 =
(85)360×24÷32+730 =
(86)2100-94+48×54 =
(87)51+(2304-2042)×23 =
(88)4215+(4361-716)÷81=
(89)(247+18)×27÷25 =
(90)36-720÷(360÷18) =
(91)1080÷(63-54)×80 =
(92)(528+912)×5-6178 =
(93)8528÷41×38-904 =
(94)264+318-8280÷69 =
(95)(174+209)×26- 9000 =
(96)814-(278+322)÷15 =
(97)1406+735×9÷45 =
(98)3168-7828÷38+504 =
(99)796-5040÷(630÷7)=
(100)285+(3000-372)÷36=
100题,花了不少时间,希望能采纳,谢谢!
㈡ 四年级脱式计算题
四年级下册计算能力检测(一)
姓名:
用递等式计算下面各题,能简算的要简算。
45+240÷12 124+78+22 100-35-25
(140-70)×54 63+84×2÷42 490÷7+24×5
26×6-110 345+99 (46-20)×30-90
25×27×4 15×7+85×7 (40-4)×25
125×64 2400÷80-14×2 108-(83+360÷60)
(420+48)÷(375-345) 290-(34×3+99)
142-54÷9+14 240÷16 75×4×25
407-99 16×76-76×6 99×53+53
720÷36÷2 103×35 450-2×(16+9)
245-(45+39) 28×25 473+59+27+1
98×99 125×(8×4)×5 41×25-25
88×125 420÷(205-198)×4 540÷2÷54
460÷(29-18÷3) 720÷36 (960-400)÷70
㈢ 400道四年级上册的脱式计算并有答案。
1、92+92×
解析:此题可以利用乘法结合律,将1与99结合,组成100,再与92相乘,使得运算简便。
92+92×99
=92×1+92×99
=92×(99+1)
=92×100
=9200
2、6.07+0.4-0.08
解析:此题的小数之前没有规律不方便计算,可先利用分配律把0.08转换成0.07+0.01,再利用加法结合律进行简便计算。
6.07+0.4-0.08
=6.07+0.4-(0.07+0.01)
=6.07+0.4-0.07-0.01
=6.07-0.07+0.4-0.01
=6+0.4-0.01
=6.4-0.01
=6.39
3、8.2-9.6x0.5
解析:此题先计算乘法,再计算减法,脱式算法如下:
8.2-9.6x0.5
=8.2-4.8
=3.4
4、35x62+70x19
解析:此题先利用乘法分配律把70变换成35成2,再利用乘法分配律的逆运用提取公约数35,最后利用乘法结合律来简便计算。
35x62+70x19
=35x62+35x2x19
=35x62+35x38
=35×(62+38)
=100×35
=3500
5、24.6-3.98+5.4-6.02
此题利用加法交换结合律,凑整再计算。步骤如下:
24.6-3.98+5.4-6.02
=(24.6+5.4)-(3.98+6.02)
=30-10
=20
㈣ 小学四年级数学 脱式计算什么意思
脱式计算,即递等式计算,把计算过程完整写出来的运算,也就是脱离竖式的计算。在计算混合运算时,通常是一步计算一个算式(逐步计算,等号不能写在原式上),要写出每一步的过程。一般来说,等号要往前,不与第一行对齐。也就是离开原式计算。
加法:把两个数合并成一个数的运算。
减法:在已知两个加数的和与其中的一个加数,求另--个Jm数的运算。
乘法:求两个数乘积的运算。
1、一个数乘整数,是求几个相同加数和的简便运算。
2、一个数乘小数,是求这个数的十分之几、百分之几、千分之几……是多少。
3、一个数乘分数,是求这个数的几分之几是多少。
除法:已知两个因数的积与其中的一个因数,求另一个因数的运算。
综合算式(四则运算)应当注意的地方:
1、如果只有加和减或者只有乘和除,从左往右计算,例如:2+1-1=2,先算2+1的得数,2+1的得数再减1。
2、如果一级运算和二级运算,同时有,先算二级运算
3、如果一级,二级,三级运算(即乘方、开方和对数运算)同时有,先算三级运算再算其他两级。
4、如果有括号,要先算括号里的数(不管它是什么级的,都要先算)。
5、在括号里面,也要先算三级,然后到二级、一级。
(4)小学四年级脱式记算扩展阅读:
在一个算式中,如果既含有第一级运算又含有第二级运算,那么,应先算第二级运算,后算第一级运算。即“先算乘法和除法,后算加法和减法”,简称“先乘除,后加减”。
同级运算在一个算式中,如果只含有同级运算,应当按照从左到右的次序进行运算。这就是说,只含有加减法,或者只含有乘除法的混合运算,它们的运算顺序是从左到右依次计算。
如果要改变上面所说的运算顺序,就要用到括号。常用到的括号有三种:小括号,记作();中括号,记作[ ;大括号,记作{}.使用括号的时候,两边拉,中间加。要先用小括号,再用中括号,最后用大括号。
㈤ 四年级脱式计算题及答案300
四年级两位数乘一位数
(1) 94 × 8 = (2) 57 × 6 = (3) 9 × 67 =
(4) 26 × 9 = (5) 41 × 9 = (6) 57 × 3 =
(7) 7 × 79 = (8) 62 × 5 = (9) 21 × 1 =
(10) 3 × 57 = (11) 5 × 84 = (12) 8 × 26 =
(13) 5 × 67 = (14) 37 × 4 = (15) 8 × 98 =
(16) 6 × 24 = (17) 98 × 5 = (18) 12 × 2 =
(19) 9 × 75 = (20) 68 × 2 =
四年级几百几十数乘一位数
(1) 4 × 30 = (2) 100 × 4 = (3) 700 × 5 =
(4) 9 × 800 = (5) 8 × 80 = (6) 5 × 200 =
(7) 6 × 300 = (8) 2 × 600 = (9) 300 × 9 =
(10) 2 × 400 = (11) 4 × 50 = (12) 3 × 20 =
(13) 60 × 1 = (14) 7 × 600 = (15) 5 × 90 =
(16) 20 × 1 = (17) 90 × 3 = (18) 9 × 300 =
(19) 2 × 100 = (20) 90 × 6 =
四年级小数的加法和减法
(1) 7.64 + 6.42 = (2) 9.31 + 3.31 = (3) 1.44 + 1.02 =
(4) 3.42 - 2.19 = (5) 8.13 - 7.79 = (6) 8.96 - 5.27 =
(7) 7.37 + 6.17 = (8) 3.77 - 3.00 = (9) 2.10 + 2.34 =
(10) 1.48 + 4.54 = (11) 7.69 + 9.31 = (12) 7.83 + 1.96 =
(13) 7.45 - 5.77 = (14) 8.98 - 7.83 = (15) 3.08 + 9.01 =
(16) 9.17 + 4.62 = (17) 3.79 + 3.20 = (18) 9.51 - 8.59 =
(19) 5.64 - 2.98 = (20) 9.86 - 8.20 =
四年级两位数乘三位数
(1) 624 × 17 = (2) 15 × 914 = (3) 422 × 74 =
(4) 894 × 45 = (5) 103 × 80 = (6) 445 × 32 =
(7) 49 × 958 = (8) 212 × 25 = (9) 21 × 498 =
(10) 80 × 857 = (11) 980 × 69 = (12) 371 × 16 =
(13) 70 × 569 = (14) 53 × 223 = (15) 36 × 499 =
(16) 516 × 47 = (17) 37 × 438 = (18) 840 × 78 =
(19) 918 × 62 = (20) 946 × 80 =
四年级整十数除整十数
(1) 20 ÷ 10 = (2) 90 ÷ 10 = (3) 30 ÷ 10 =
(4) 60 ÷ 10 = (5) 90 ÷ 30 = (6) 60 ÷ 20 =
(7) 40 ÷ 10 = (8) 80 ÷ 20 = (9) 80 ÷ 10 =
(10) 50 ÷ 10 = (11) 40 ÷ 20 = (12) 80 ÷ 40 =
(13) 70 ÷ 10 = (14) 60 ÷ 30 =
四年级整十数除几百几十数
(1) 920 ÷ 10 = (2) 180 ÷ 90 = (3) 900 ÷ 20 =
(4) 420 ÷ 10 = (5) 540 ÷ 30 = (6) 390 ÷ 30 =
(7) 520 ÷ 10 = (8) 330 ÷ 10 = (9) 840 ÷ 20 =
(10) 330 ÷ 30 = (11) 100 ÷ 20 = (12) 160 ÷ 20 =
(13) 270 ÷ 30 = (14) 510 ÷ 10 = (15) 700 ÷ 10 =
(16) 690 ÷ 30 = (17) 440 ÷ 40 = (18) 520 ÷ 40 =
(19) 420 ÷ 70 = (20) 720 ÷ 10 =
四年级整十数除三位数来源
(1) 940 ÷ 10 = (2) 560 ÷ 10 = (3) 100 ÷ 20 =
(4) 240 ÷ 80 = (5) 630 ÷ 10 = (6) 280 ÷ 70 =
(7) 400 ÷ 20 = (8) 370 ÷ 10 = (9) 550 ÷ 10 =
(10) 880 ÷ 80 = (11) 740 ÷ 10 = (12) 300 ÷ 20 =
(13) 360 ÷ 10 = (14) 600 ÷ 40 = (15) 900 ÷ 90 =
(16) 760 ÷ 10 = (17) 180 ÷ 60 = (18) 900 ÷ 20 =
(19) 400 ÷ 80 = (20) 800 ÷ 50 =
四年级两位数除三位数
[标签:四年级]
(1) 970 ÷ 97 = (2) 456 ÷ 24 = (3) 544 ÷ 17 =
(4) 484 ÷ 44 = (5) 730 ÷ 73 = (6) 924 ÷ 21 =
(7) 806 ÷ 62 = (8) 697 ÷ 41 = (9) 870 ÷ 87 =
(10) 684 ÷ 57 = (11) 726 ÷ 66 = (12) 816 ÷ 68 =
(13) 920 ÷ 92 = (14) 830 ÷ 83 = (15) 885 ÷ 59 =
(16) 846 ÷ 47 = (17) 868 ÷ 28 = (18) 780 ÷ 12 =
(19) 847 ÷ 77 = (20) 450 ÷ 30 =
四年级小数保留速算题
(1) 0.448(保留二位小数) (2) 0.841(保留二位小数) (3) 5.401(保留一位小数)
(4) 86.348(保留二位小数) (5) 2.104(保留一位小数) (6) 36.654(保留二位小数)
(7) 3.126(保留二位小数) (8) 5.222(保留二位小数) (9) 20.116(保留二位小数)
(10) 4.104(保留二位小数) (11) 8.63(保留二位小数) (12) 2.872(保留二位小数)
(13) 13.196(保留二位小数) (14) 157.177(保留整数) (15) 0.295(保留整数)
(16) 18.267(保留二位小数) (17) 4.5(保留二位小数) (18) 6.134(保留一位小数)
(19) 0.284(保留二位小数) (20) 2.728(保留二位小数)
四年级小数的加法和减法
(1) 34.85 - 11.73 = (2) 75.80 + 59.35 = (3) 64.39 + 40.78 =
(4) 67.23 - 19.17 = (5) 50.10 - 48.60 = (6) 91.91 - 75.10 =
(7) 53.73 - 31.75 = (8) 64.48 - 14.42 = (9) 39.03 - 14.98 =
(10) 22.04 + 80.13 = (11) 28.36 - 24.00 = (12) 61.83 + 69.95 =
(13) 65.36 - 38.06 = (14) 29.37 - 18.02 = (15) 42.09 - 32.46 =
(16) 18.08 + 34.00 = (17) 47.63 - 31.59 = (18) 17.42 - 10.44 =
(19) 16.24 - 14.18 = (20) 55.89 - 28.75 =
四年级两位数四则运算
1) 49+76+37 = (2) 28×2+84 = (3) 4÷1×1 = (4) 36+69×4 = (5) 9÷1-8 =
(6) 4×1÷1 = (7) 6÷3+19 = (8) 5×7÷1 = (9) 8+52÷1 = (10) 2+50÷1 =
(11) 9÷1+53 = (12) 9÷1×4 = (13) 17×8×1 = (14) 94-26-22 = (15) 6÷1-3 =
(16) 48+84×1 = (17) 7×1÷1 = (18) 7÷7×4 = (19) 7÷1×5 = (20) 4÷1×2 =
气死人的四年级口算题
97万-21万= 400×80= 720×53≈ 72+58=
60×500= 9000-2000= 56×620≈ 17×7=
56万+20万= 4×15= 578×27≈ 200-75=
4000+3000= 40×15= 342×28≈ 125×2=
70万+26万= 400×15= 786×34≈ 480+80=
8000-1000= 25×4= 55×240≈ 377+23=
3000+2000= 25×30= 214×52≈ 99+102=
18万+35万= 25×300= 496×89≈ 330-260=
5000+4000= 8×6= 68×315≈ 9×6+15=
47万+23万= 80×60= 778×43≈ 8×9+7=
9000-6000= 800×600= 87×115≈ 7×5+5=
8000-2000= 400+80= 806×51≈ 5×8+9=
76万-28万= 277+23= 400-128= 120-25=
90万-30万= 480-400= 300-253= 107-79=
23×30= 300-23= 200-149= 280÷8=
230×30= 99+88= 100-56= 35×4=
200×20= 330-260= 600-420= 38×5=
320×30= 187-99= 95+105= 277+23=
240×20= 330-70= 4000+5000= 1500+6000=
480-80= 70×600= 100-78= 6×9+8=
260+70= 600×5= 1200-800= 7+8×9=
300-277= 130×4= 6000+9000= 187-88=
187-88= 400×7= 210-55= 75×6=
500-149= 800÷2= 185-30= 75×4=
400-127= 450÷5= 358+642= 1200-400=
四年级超级口算题集合
15×5= 16×5= 23×3= 12×50= 27×3=
48÷4= 90÷15= 24×20= 32×3= 48÷16=
12×8= 27×3= 56÷14= 76-39= 605+59=
24÷8= 14×2= 83-45= 96÷24= 40÷20= 40×30=
30×23= 12×8= 27+32= 48+27= 4500×20=
120×600= 280+270= 200×360= 4×250= 310-70= 400×14=
470+180= 60×600= 20×420= 290×300= 680+270= 6×1300=
1300×50= 200×48= 930-660= 530+280= 180×500= 200×160=
300×33= 3×1400= 60÷12= 140×300= 750-290= 5×400=
370×200= 65÷13= 15×10= 84÷21=
100-54= 123+15= 12×11= 160×30= 220×40= 104×5=
120×2= 90÷30= 270×30= 360÷4= 55÷5= 32×6=
35×2= 140×7= 13×6= 280×3= 350×2= 50×11=
250×6= 7200+900= 410-201= 125×8= 48×20=
390+140= 11×80= 24×50= 530-70=
420-90= 7×700= 203+98= 370+580=
240×3= 24×30= 240×30= 360×5= 180×15=
45×7×2= 8×5×25= 35×2×5= 4×9×50= 160÷8÷2=
6 升 = ( )毫升 8000 毫升=( )升
20000毫升=( )升 10升=( )毫升
40÷20= 80÷40= 60÷30=
90÷30= 240÷80= 480÷80=
400÷50= 320÷40= 210÷30=
60÷20= 200÷50= 360÷40=
61÷20≈ 203÷50≈ 358÷40≈
60÷19≈ 200÷52≈ 360÷37≈
30×3= 80×9= 60×5=
90÷30= 720÷80= 300÷60=
19×96-962÷74 10000-(59+66)×64 5940÷45×(798-616)
(315×40-364)÷7 12520÷8×(121÷11) (2010-906)×(65+15)
(639-71×9)÷167 (10800-800×4)÷4 720÷90×48÷8
36×(913-276÷23) (93+25×21)×9 507÷13×63+498
723-(521+504)÷25 384÷12+23×371 (39-21)×(396÷6)
720÷(15-3×2) 3889-(108-931)×5 (800+200÷50)×3
适合四年级孩子的口算题
39×4= 51×9= 77×7= 874×3=
304×5= 106×10= 178×3= 78×9=
1.573×6= 3.52×100 3.54×8= 43.87×4=
163×3= 724×7= 43.7×8= 46.9×8=
78×9= 250×0.4= 24×5= 37×8=
104×5= 847×4= 8×42= 5.78×92=
78×2= 245×0= 306×103×0= 132×6=
350×1000= 317×4= 1.52×6= 125×0.8=
302×783×0= 264×8= 5.76×9= 3875×0=
1.854×0×100= 937×4= 285×4= 134×3=
125×8= 25×4= 300×52= 5×42=
1.35×9= 15×8= 125×4= 8.456×1000=
21×8= 32×0.1= 572×8= 372×0=
153×46= 173×10= 15×80= 3652007×0=
384÷4= 888÷74 592÷37= 384÷32=
1846÷10= 468÷39= 1460÷20= 50÷2=
78÷4= 24.5÷14= 49.5÷3= 153÷0=
462÷5= 374÷10= 73÷9= 10÷3=
73×78≈ 901÷4≈ 35×21≈ 38÷6≈
四年级口算趣题
7365-3999= 1800÷36= 35×14=
4×50 20×2 300×6 120×3
50×600 16×70 150×20 60÷30
80÷20 240÷40 210÷70 400÷50
1000÷100 25×4 125×8
1) 18×5= 2) 42÷7= 3) 38×2= 4) 36÷9=
5) 25×4= 6) 32+8= 7) 14×8= 8) 200×9=
9) 70×5= 10) 28×3= 11) 45÷5= 12) 200×9=
13) 13×3= 14) 24×4= 15) 13×5= 16) 19×3=
17) 16×4= 18) 12×8= 19) 270×3= 20) 56+8=
21) 19×4= 22) 34×3= 23) 11×7= 24) 15×4=
25) 32+8= 26) 24×4= 27) 70×5= 28) 18÷3=
29) 24×4= 30) 36÷9= 31) 40×4= 32) 500×5=
33) 90×5= 34) 45÷5= 35) 18×5= 36) 38×2=
37) 36×2= 38) 500×5= 39) 24÷3= 40) 12×8=
41) 75×2= 42) 11×4= 43) 16×5= 44) 12×9=
45) 18÷3= 46) 90×5= 47) 800×7= 48) 90×5=
49) 15×5= 50) 81÷9= 51) 50×7= 52) 14×7=
53) 50×7= 54) 32×4= 55) 22×3= 56) 300×7=
57) 12×9= 58) 56+8= 59) 25×6= 60) 25×3=
61) 12×5= 62) 14×7= 63) 25×3= 64) 12×6=
65) 33×5= 66) 72+8= 67) 12×438×2= 68) 21×6=
69) 700×4= 70) 12×6= 71) 22×5= 72) 80×3=
73) 42÷7= 74) 25×6= 75) 11×6= 76) 14×8=
77) 28×3= 78) 40×4= 79) 20×9= 80) 1000×4=
81) 800×7= 82) 14×3= 83) 80×3= 84) 32×3=
85) 25×6= 86) 20×9= 87) 12×9= 88) 36÷9=
89) 30×7= 90) 36×2= 91) 81÷9= 92) 500×5=
93) 13×6= 94) 32×3= 95) 17×5= 96) 14×6=
97) 26×3= 98) 79+24= 99) 16×3= 100) 28×3=
某小学四年级口算试题
560÷35÷2= 25×4= 254+99=
45×12= 750-570= 50÷7=
57+19= 60÷60= 70×60=
91-28= 58+79+42= 80×5×6=
90-25= 35×35+65×35= 125×80=
44-15= 1800÷90= 125×16=
97+18= 10×24= 45×14=
26+14= 81÷27= 69÷23=
123+259+741+477= 95×46+46×5= 102×34=
749+5036+251= 99×99+99= 614-402=
725-76-24= 125×24= 360÷24=
1036-155-245= 865×99+865= 67×9+67=
655+777+345= 25×9×4×7= 1814-378-422=
398+558+442= 1800÷5÷2= 22×6×5=
870-232-168= 640÷16= 7200÷45÷2=
一套四年级口算试题
32×30= 22×30= 6×201=
17×5= 4×60= 4500÷900=
170+90= 4800÷40= 14×201=
80÷16= 4200÷20= 2500÷50=
16×5= 32×20= 67×4=
2400÷40= 3600÷60= 87÷3=
25×16= 48×9= 696÷3=
125×6= 48×25= 780÷20=
72-45= 360-85= 720÷45÷2=
3000+200= 48×125= 35×8=
80-4= 420÷35÷2= 25×32=
45÷15= 78÷2= 45×12=
6×85= 69÷23= 67+25=
710-420= 50×90= 22×8×5=
12×5= 6300÷30= 690-420=
102+284= 480+290= 930÷30=
23×3= 800×30= 2100÷70=
四年级口算 心算试题
640÷80=
15×10=
12×11=
160×30=
220×40=
104×5=
4500÷50=
120×2=
90÷30=
270÷30=
270×30=
84÷21=
76÷9=
66÷7=
100-54=
123+15=
360÷4=
55÷5=
32×6= 7000÷70=
200÷40=
180÷30=
240÷40=
35×2=
140×7=
13×6=
280×3=
350×2=
50×11=
250×6=
7200+900=
410-201=
125×8=
48×20=
6600÷600=
390+140=
11×80=
24×50=
3600÷400= 4000÷50=
530-70=
420-90=
9600÷30=
7×700=
203+98=
1800÷300=
240+570=
4800÷400=
370+580=
580-490=
910-370=
25×8=
270-190=
36×2=
75÷25=
330÷11=
6×800=
5400÷9=
420÷60= 9×800=
3×330=
300×7=
9×500=
390÷13=
6300÷700=
5600÷700=
4800÷12=
3500÷7=
370+560=
520+490=
450-90=
80+330=
70×700=
7000÷70=
4000÷80=
2400÷200=
420-90=
170+320=
1000-51=
520-260=
910-190=
35×200=
22×200=
8800÷400=
9300÷300=
6×300=
1800÷200=
四年级口算训练题
640÷80=
15×5=
23×3=
12×2×5=
480÷80=
16×5=
27×3=
90÷15=
48÷4=
640÷16=
39÷3=
24×20=
32×3=
48÷16=
12×8=
27×3=
56÷14=
24÷8=
14×2=
83-45=
560÷80=
96÷24=
40÷20=
40×30=
37+26=
76-39=
605+59=
30×23=
12×8=
27+32=
48+27=
4500×20=
73+15 =
120×600 =
200×360=
6800×400=
280+270=
4×2500=
6000÷40=
5×1280=
310-70=
400×14=
470+180=
1000÷25=
160×600=
20×420=
290×300=
8100÷300=
7600÷200=
7600÷400=
680+270=
980÷14=
4200÷30=
6×1300=
1300×50=
200×48=
930-660=
530+280=
9200÷400=
840÷21=
180×500=
8000÷500 =
1900÷20=
200×160=
8700÷300=
300×330=
3×1400=
7000÷14=
600÷12=
9600÷80=
140×300=
8800÷40=
9600÷800=
750-290=
5×490=
760×20=
7500÷500=
370×200=
650÷13=
8600-4200=
㈥ 四年级下册脱式计算
一百道四年级简算脱式练习题,希望能帮到你 25×42×4 68×125×8 4×39×25 4×25+16×25 4×25×16×25 36×99 (25+15) ×4 (25×15)×4 49×49+49×51 49×99+49 (68+32)×5 5×289×2 68+32×5 (125×25)×4 (125 + 17)×8 25×64×125 85×82 + 82×15 25×97 + 25×3 64×15-14×15 125×88 88×102 87×99 + 87 79×25 + 25 76×101-76 378 + 527 + 73 167 + 289 + 33 58 + 39 + 42 + 61 36×45+36×56-36 66×93+93×33+93 99 × 32 46×25 36×45+36×56-36 66×93+93×33+93 97+89+11 88×102 125×88 26+47+174 85+47+15+53 815+49+65+14+11 72×125 18+77+40+23+48 71+73+69+74+68+70+69 123×64+123×36 39×4×5 125×6×8 25×24 32×305 103×15 78×24-24×68 49×49+49×(40+6)×25 (68+32)×5 68+32×5 49×99+49 36×97—58×36+61×36 3000÷25÷4 720÷15÷6 150÷25÷2 5000÷8÷125 99×23+23 56×7+45×7-7 125×13×87 2÷6×(51+19) 3.4十4.6—2.9 900—178—122 (79十21)÷20 125×72×4 728×79十272×79 8.59+2.57十3.43十5.47 (20+4) × 25 99×11 49.62十27.17—19.62 1546一(546—239) (20+4) × 25 9 × 37+9 ×63 5×289×2 35×37+65×37 124×25 - 25×24 85×82+82×15 32×(200+3) 38×29+38 (125×25)×4 75×299+75 (4 + 8)× 125 25 ×(20 + 4) 45 × 7 + 55 × 7 8 × 27 + 8 × 73 103 × 32 329×101 9 × 37+9 ×63 99×23 36×97—58×36+61×36 (125+17)×8 102X100+102 8X12+8X7 5000÷8÷125 165+204+335+96 3000÷25÷4 56×7+45×7-7 720÷15÷6 150÷25÷2
㈦ 四年级脱式计算200道及答案
1、56+31+24
=(56+24)+31
=80+31
=111
2、615+475+125
=615+(475+125)
=615+600
=1215
3、125×64
=125×8×8
=1000×8
=8000
4、 89+101+111
=101+(89+111)
=101+200
=301
5、24+127+476+573
=(24+476)+(127+573)
=500+700
=1200
6、400-273-127
=400-(273+127)
=400-400
=0
7、327+(96-127)
=327-127+96
=200+96
=296
8、70×98
=70×(-2)
=7000-140
=6860
9、442-103-142
=442-142-103
=300-103
=197
10、999+99+9
=1000+100+10-3
=1110-3
=1107
11、67×5×2
=67×(5×2)
=67×10
=670
12、25×(78×4)
=25×4×78
=100×78
=7800
13、72×125
=9×(8×125)
=9×1000
=9000
14、9000÷125÷8
=9000÷(125×8)
=9000÷1000
=9
15、400÷25
=400÷100×4
=4×4
=16
16、25×36
=25×4×9
=100×9
=900
17、103×27
=(100+3)×27
=2700+81
=2781
18、76×102
=76×(100+2)
=7600+152
=7752
19、3600÷25÷4
=3600÷(25×4)
=3600÷100
=36
20、99×35
=(100-1)×35
=3500-35
=3465
21、(25+12)×4
=25×4+12×4
=100+48
=148
22、56×27+27×44
=(56+44)×27
=100×27
=2700
23、56×99+56
=56×(99+1)
=56×100
=5600
24、125×25×8×4
=125×8×(25×4)
=1000×100
=100000
25、25×32×125
=(25×4)×(8×125)
=100×1000
=100000
编辑于 2017-08-04
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四年级数学简便计算题100道,秋季数学特训班高效提分,抓紧报名
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说好的200道题呢?为什么只有25道题
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200道四年级简便运算及答案
16×77+16×23 =16×(77+23) =16×100 =1600 28×30+30×22 =30×(28+22) =30×50 =1500 32×27+18×27 =27×(32+18) =27×50 =1350 125×64 =125×8×8 =1000×8 =8000 76×101 =76×(100+1) =76×100+76×1 =7600+76 =7676 695-134+105-166 =(695+105)-(134+166) =800-300 =500 第一和第二题数字不模糊看不清楚,请追问,一定解答。
1237赞·2,959浏览2018-05-01
求200道四年级脱式计算题 带答案
四年级两位数乘一位数 (1) 94 × 8 = (2) 57 × 6 = (3) 9 × 67 = (4) 26 × 9 = (5) 41 × 9 = (6) 57 × 3 = (7) 7 × 79 = (8) 62 × 5 = (9) 21 × 1 = (10) 3 × 57 = (11) 5 × 84 = (12) 8 × 26 = (13) 5 × 67 = (14) 37 × 4 = (15) 8 × 98 = (16) 6 × 24 = (17) 98 × 5 = (18) 12 × 2 = (19) 9 × 75 = (20) 68 × 2 = 四年级几百几十数乘一位数 (1) 4 × 30 = (2) 100 × 4 = (3) 700 × 5 = (4) 9 × 800 = (5) 8 × 80 = (6) 5 × 200 = (7) 6 × 300 = (8) 2 × 600 = (9) 300 × 9 = (10) 2 × 400 = (11) 4 × 50 = (12) 3 × 20 = (13) 60 × 1 = (14) 7 × 600 = (15) 5 × 90 = (16) 20 × 1 = (17) 90 × 3 = (18) 9 × 300 = (19) 2 × 100 = (20) 90 × 6 = 四年级小数的加法和减法 (1) 7.64 + 6.42 = (2) 9.31 + 3.31 = (3) 1.44 + 1.02 = (4) 3.42 - 2.19 = (5) 8.13 - 7.79 = (6) 8.96 - 5.27 = (7) 7.37 + 6.17 = (8) 3.77 - 3.00 = (9) 2.10 + 2.34 = (10) 1.48 + 4.54 = (11) 7.69 + 9.31 = (12) 7.83 + 1.96 = (13) 7.45 - 5.77 = (14) 8.98 - 7.83 = (15) 3.08 + 9.01 = (16) 9.17 + 4.62 = (17) 3.79 + 3.20 = (18) 9.51 - 8.59 = (19) 5.64 - 2.98 = (20) 9.86 - 8.20 = 四年级两位数乘三位数 (1) 624 × 17 = (2) 15 × 914 = (3) 422 × 74 = (4) 894 × 45 = (5) 103 × 80 = (6) 445 × 32 = (7) 49 × 958 = (8) 212 × 25 = (9) 21 × 498 = (10) 80 × 857 = (11) 980 × 69 = (12) 371 × 16 = (13) 70 × 569 = (14) 53 × 223 = (15) 36 × 499 = (16) 516 × 47 = (17) 37 × 438 = (18) 840 × 78 = (19) 918 × 62 = (20) 946 × 80 = 四年级整十数除整十数 (1) 20 ÷ 10 = (2) 90 ÷ 10 = (3) 30 ÷ 10 = (4) 60 ÷ 10 = (5) 90 ÷ 30 = (6) 60 ÷ 20 = (7) 40 ÷ 10 = (8) 80 ÷ 20 = (9) 80 ÷ 10 = (10) 50 ÷ 10 = (11) 40 ÷ 20 = (12) 80 ÷ 40 = (13) 70 ÷ 10 = (14) 60 ÷ 30 = 四年级整十数除几百几十数 (1) 920 ÷ 10 = (2) 180 ÷ 90 = (3) 900 ÷ 20 = (4) 420 ÷ 10 = (5) 540 ÷ 30 = (6) 390 ÷ 30 = (7) 520 ÷ 10 = (8) 330 ÷ 10 = (9) 840 ÷ 20 = (10) 330 ÷ 30 = (11) 100 ÷ 20 = (12) 160 ÷ 20 = (13) 270 ÷ 30 = (14) 510 ÷ 10 = (15) 700 ÷ 10 = (16) 690 ÷ 30 = (17) 440 ÷ 40 = (18) 520 ÷ 40 = (19) 420 ÷ 70 = (20) 720 ÷ 10 = 四年级整十数除三位数来源 (1) 940 ÷ 10 = (2) 560 ÷ 10 = (3) 100 ÷ 20 = (4) 240 ÷ 80 = (5) 630 ÷ 10 = (6) 280 ÷ 70 = (7) 400 ÷ 20 = (8) 370 ÷ 10 = (9) 550 ÷ 10 = (10) 880 ÷ 80 = (11) 740 ÷ 10 = (12) 300 ÷ 20 = (13) 360 ÷ 10 = (14) 600 ÷ 40 = (15) 900 ÷ 90 = (16) 760 ÷ 10 = (17) 180 ÷ 60 = (18) 900 ÷ 20 = (19) 400 ÷ 80 = (20) 800 ÷ 50 = 四年级两位数除三位数 [标签:四年级] (1) 970 ÷ 97 = (2) 456 ÷ 24 = (3) 544 ÷ 17 = (4) 484 ÷ 44 = (5) 730 ÷ 73 = (6) 924 ÷ 21 = (7) 806 ÷ 62 = (8) 697 ÷ 41 = (9) 870 ÷ 87 = (10) 684 ÷ 57 = (11) 726 ÷ 66 = (12) 816 ÷ 68 = (13) 920 ÷ 92 = (14) 830 ÷ 83 = (15) 885 ÷ 59 = (16) 846 ÷ 47 = (17) 868 ÷ 28 = (18) 780 ÷ 12 = (19) 847 ÷ 77 = (20) 450 ÷ 30 = 四年级小数保留速算题 (1) 0.448(保留二位小数) (2) 0.841(保留二位小数) (3) 5.401(保留一位小数) (4) 86.348(保留二位小数) (5) 2.104(保留一位小数) (6) 36.654(保留二位小数) (7) 3.126(保留二位小数) (8) 5.222(保留二位小数) (9) 20.116(保留二位小数) (10) 4.104(保留二位小数) (11) 8.63(保留二位小数) (12) 2.872(保留二位小数) (13) 13.196(保留二位小数) (14) 157.177(保留整数) (15) 0.295(保留整数) (16) 18.267(保留二位小数) (17) 4.5(保留二位小数) (18) 6.134(保留一位小数) (19) 0.284(保留二位小数) (20) 2.728(保留二位小数) 四年级小数的加法和减法 (1) 34.85 - 11.73 = (2) 75.80 + 59.35 = (3) 64.39 + 40.78 = (4) 67.23 - 19.17 = (5) 50.10 - 48.60 = (6) 91.91 - 75.10 = (7) 53.73 - 31.75 = (8) 64.48 - 14.42 = (9) 39.03 - 14.98 = (10) 22.04 + 80.13 = (11) 28.36 - 24.00 = (12) 61.83 + 69.95 = (13) 65.36 - 38.06 = (14) 29.37 - 18.02 = (15) 42.09 - 32.46 = (16) 18.08 + 34.00 = (17) 47.63 - 31.59 = (18) 17.42 - 10.44 = (19) 16.24 - 14.18 = (20) 55.89 - 28.75 = 四年级两位数四则运算 1) 49+76+37 = (2) 28×2+84 = (3) 4÷1×1 = (4) 36+69×4 = (5) 9÷1-8 = (6) 4×1÷1 = (7) 6÷3+19 = (8) 5×7÷1 = (9) 8+52÷1 = (10) 2+50÷1 = (11) 9÷1+53 = (12) 9÷1×4 = (13) 17×8×1 = (14) 94-26-22 = (15) 6÷1-3 = (16) 48+84×1 = (17) 7×1÷1 = (18) 7÷7×4 = (19) 7÷1×5 = (20) 4÷1×2 = 气死人的四年级口算题 97万-21万= 400×80= 720×53≈ 72+58= 60×500= 9000-2000= 56×620≈ 17×7= 56万+20万= 4×15= 578×27≈ 200-75= 4000+3000= 40×15= 342×28≈ 125×2= 70万+26万= 400×15= 786×34≈ 480+80= 8000-1000= 25×4= 55×240≈ 377+23= 3000+2000= 25×30= 214×52≈ 99+102=
44赞·267浏览
求四年级上册数学脱式计算(要简便)题目,200道和答案。要快哦~好的追加200分!
125X8+25X4 125X4+25X8 100X6+50X6 159X357+951X753 123X456X789 147X258X369 987X654X321 963X852X741 ……^_^答案用计算机
51赞·2,423浏览
400道四年级上册的脱式计算并有答案。
1、92+92×99 解析:此题可以利用乘法结合律,将1与99结合,组成100,再与92相乘,使得运算简便。 92+92×99 =92×1+92×99 =92×(99+1) =92×100 =9200 2、6.07+0.4-0.08 解析:此题的小数之前没有规律不方便计算,可先利用分配律把0.08转换成0.07+0.01,再利用加法结合律进行简便计算。 6.07+0.4-0.08 =6.07+0.4-(0.07+0.01) =6.07+0.4-0.07-0.01 =6.07-0.07+0.4-0.01 =6+0.4-0.01 =6.4-0.01 =6.39 3、8.2-9.6x0.5 解析:此题先计算乘法,再计算减法,脱式算法如下: 8.2-9.6x0.5 =8.2-4.8 =3.4 4、35x62+70x19 解析:此题先利用乘法分配律把70变换成35成2,再利用乘法分配律的逆运用提取公约数35,最后利用乘法结合律来简便计算。 35x62+70x19 =35x62+35x2x19 =35x62+35x38 =35×(62+38) =100×35 =3500 5、24.6-3.98+5.4-6.02 此题利用加法交换结合律,凑整再计算。步骤如下: 24.6-3.98+5.4-6.02 =(24.6+5.4)-(3.98+6.02) =30-10 =20
32赞·8,630浏览2020-01-13
四年级下册简便运算题和脱式计算题,一共要200道!急急急!
四年级两位数乘一位数 (1) 94 × 8 = (2) 57 × 6 = (3) 9 × 67 = (4) 26 × 9 = (5) 41 × 9 = (6) 57 × 3 = (7) 7 × 79 = (8) 62 × 5 = (9) 21 × 1 = (10) 3 × 57 = (11) 5 × 84 = (12) 8 × 26 = (13) 5 × 67 = (14) 37 × 4 = (15) 8 × 98 = (16) 6 × 24 = (17) 98 × 5 = (18) 12 × 2 = (19) 9 × 75 = (20) 68 × 2 = 四年级几百几十数乘一位数 (1) 4 × 30 = (2) 100 × 4 = (3) 700 × 5 = (4) 9 × 800 = (5) 8 × 80 = (6) 5 × 200 = (7) 6 × 300 = (8) 2 × 600 = (9) 300 × 9 = (10) 2 × 400 = (11) 4 × 50 = (12) 3 × 20 = (13) 60 × 1 = (14) 7 × 600 = (15) 5 × 90 = (16) 20 × 1 = (17) 90 × 3 = (18) 9 × 300 = (19) 2 × 100 = (20) 90 × 6 = 四年级小数的加法和减法 (1) 7.64 + 6.42 = (2) 9.31 + 3.31 = (3) 1.44 + 1.02 = (4) 3.42 - 2.19 = (5) 8.13 - 7.79 = (6) 8.96 - 5.27 = (7) 7.37 + 6.17 = (8) 3.77 - 3.00 = (9) 2.10 + 2.34 = (10) 1.48 + 4.54 = (11) 7.69 + 9.31 = (12) 7.83 + 1.96 = (13) 7.45 - 5.77 = (14) 8.98 - 7.83 = (15) 3.08 + 9.01 = (16) 9.17 + 4.62 = (17) 3.79 + 3.20 = (18) 9.51 - 8.59 = (19) 5.64 - 2.98 = (20) 9.86 - 8.20 = 四年级两位数乘三位数 (1) 624 × 17 = (2) 15 × 914 = (3) 422 × 74 = (4) 894 × 45 = (5) 103 × 80 = (6) 445 × 32 = (7) 49 × 958 = (8) 212 × 25 = (9) 21 × 498 = (10) 80 × 857 = (11) 980 × 69 = (12) 371 × 16 = (13) 70 × 569 = (14) 53 × 223 = (15) 36 × 499 = (16) 516 × 47 = (17) 37 × 438 = (18) 840 × 78 = (19) 918 × 62 = (20) 946 × 80 = 四年级整十数除整十数 (1) 20 ÷ 10 = (2) 90 ÷ 10 = (3) 30 ÷ 10 = (4) 60 ÷ 10 = (5) 90 ÷ 30 = (6) 60 ÷ 20 = (7) 40 ÷ 10 = (8) 80 ÷ 20 = (9) 80 ÷ 10 = (10) 50 ÷ 10 = (11) 40 ÷ 20 = (12) 80 ÷ 40 = (13) 70 ÷ 10 = (14) 60 ÷ 30 = 四年级整十数除几百几十数 (1) 920 ÷ 10 = (2) 180 ÷ 90 = (3) 900 ÷ 20 = (4) 420 ÷ 10 = (5) 540 ÷ 30 = (6) 390 ÷ 30 = (7) 520 ÷ 10 = (8) 330 ÷ 10 = (9) 840 ÷ 20 = (10) 330 ÷ 30 = (11) 100 ÷ 20 = (12) 160 ÷ 20 = (13) 270 ÷ 30 = (14) 510 ÷ 10 = (15) 700 ÷ 10 = (16) 690 ÷ 30 = (17) 440 ÷ 40 = (18) 520 ÷ 40 = (19) 420 ÷ 70 = (20) 720 ÷ 10 = 四年级整十数除三位数来源 (1) 940 ÷ 10 = (2) 560 ÷ 10 = (3) 100 ÷ 20 = (4) 240 ÷ 80 = (5) 630 ÷ 10 = (6) 280 ÷ 70 = (7) 400 ÷ 20 = (8) 370 ÷ 10 = (9) 550 ÷ 10 = (10) 880 ÷ 80 = (11) 740 ÷ 10 = (12) 300 ÷ 20 = (13) 360 ÷ 10 = (14) 600 ÷ 40 = (15) 900 ÷ 90 = (16) 760 ÷ 10 = (17) 180 ÷ 60 = (18) 900 ÷ 20 = (19) 400 ÷ 80 = (20) 800 ÷ 50 = 四年级两位数除三位数 [标签:四年级] (1) 970 ÷ 97 = (2) 456 ÷ 24 = (3) 544 ÷ 17 = (4) 484 ÷ 44 = (5) 730 ÷ 73 = (6) 924 ÷ 21 = (7) 806 ÷ 62 = (8) 697 ÷ 41 = (9) 870 ÷ 87 = (10) 684 ÷ 57 = (11) 726 ÷ 66 = (12) 816 ÷ 68 = (13) 920 ÷ 92 = (14) 830 ÷ 83 = (15) 885 ÷ 59 = (16) 846 ÷ 47 = (17) 868 ÷ 28 = (18) 780 ÷ 12 = (19) 847 ÷ 77 = (20) 450 ÷ 30 = 四年级小数保留速算题 (1) 0.448(保留二位小数) (2) 0.841(保留二位小数) (3) 5.401(保留一位小数) (4) 86.348(保留二位小数) (5) 2.104(保留一位小数) (6) 36.654(保留二位小数) (7) 3.126(保留二位小数) (8) 5.222(保留二位小数) (9) 20.116(保留二位小数) (10) 4.104(保留二位小数) (11) 8.63(保留二位小数) (12) 2.872(保留二位小数) (13) 13.196(保留二位小数) (14) 157.177(保留整数) (15) 0.295(保留整数) (16) 18.267(保留二位小数) (17) 4.5(保留二位小数) (18) 6.134(保留一位小数) (19) 0.284(保留二位小数) (20) 2.728(保留二位小数) 四年级小数的加法和减法 (1) 34.85 - 11.73 = (2) 75.80 + 59.35 = (3) 64.39 + 40.78 = (4) 67.23 - 19.17 = (5) 50.10 - 48.60 = (6) 91.91 - 75.10 = (7) 53.73 - 31.75 = (8) 64.48 - 14.42 = (9) 39.03 - 14.98 = (10) 22.04 + 80.13 = (11) 28.36 - 24.00 = (12) 61.83 + 69.95 = (13) 65.36 - 38.06 = (14) 29.37 - 18.02 = (15) 42.09 - 32.46 = (16) 18.08 + 34.00 = (17) 47.63 - 31.59 = (18) 17.42 - 10.44 = (19) 16.24 - 14.18 = (20) 55.89 - 28.75 = 四年级两位数四则运算 1) 49+76+37 = (2) 28×2+84 = (3) 4÷1×1 = (4) 36+69×4 = (5) 9÷1-8 = (6) 4×1÷1 = (7) 6÷3+19 = (8) 5×7÷1 = (9) 8+52÷1 = (10) 2+50÷1 = (11) 9÷1+53 = (12) 9÷1×4 = (13) 17×8×1 = (14) 94-26-22 = (15) 6÷1-3 = (16) 48+84×1 = (17) 7×1÷1 = (18) 7÷7×4 = (19) 7÷1×5 = (20) 4÷1×2 = 气死人的四年级口算题 97万-21万= 400×80= 720×53≈ 72+58= 60×500= 9000-2000= 56×620≈ 17×7= 56万+20万= 4×15= 578×27≈ 200-75= 4000+3000= 40×15= 342×28≈ 125×2= 70万+26万= 400×15= 786×34≈ 480+80= 8000-1000= 25×4= 55×240≈ 377+23= 3000+2000= 25×30= 214×52≈ 99+102= 18万+35万= 25×300= 496×89
㈧ 四年级计算题10道脱式计算
45+240÷12 124+78+22 100-35-25
(自140-70)×54 63+84×2÷42 490÷7+24×5
26×6-110 345+99 (46-20)×30-90
25×27×4 15×7+85×7 (40-4)×25
125×64 2400÷80-14×2 108-(83+360÷60)
(420+48)÷(375-345) 290-(34×3+99)
142-54÷9+14 240÷16 75×4×25
407-99 16×76-76×6 99×53+53
720÷36÷2 103×35 450-2×(16+9)
245-(45+39) 28×25 473+59+27+1
98×99 125×(8×4)×5 41×25-25
88×125 420÷(205-198)×4 540÷2÷54
460÷(29-18÷3) 720÷36 (960-400)÷70
㈨ 什么是四年级脱式计算
脱式计算即递等式计算,把计算过程完整写出来的运算,也就是脱离横式的计算。在计算混合运算时,通常是一步计算一个算式(逐步计算,等号不能写在原式上),要写出每一步的过程。
一般来说,等号要往前,不与第一行对齐。也就是离开原式计算。主要掌握的是记住要先算乘、除法,后算加、减法。在乘除法连续计算时中,要按从左往右的顺序依次计算。遇到括号,要首先计算括号内部。
在脱式过程中要按运算顺序划出运算顺序线,还要做到“三核对”,一要核对从书上把题抄到作业本上数字、符号是否抄对。二要核对从横式抄到草稿竖式的数字、符号是否抄对。三要核对把草稿竖式上的得数,抄到横式上是否抄对,小数点是否点对地方,有无遗漏。
㈩ 小学四年级脱式计算大全是什么
2800÷ 100+789
(947-599)+76×
36×(913-276÷23)
(93+25×21)×9
507÷13×63+498
723-(521+504)÷25
384÷12+23×371
(39-21)×(396÷6)
156×[(17.7-7.2)÷3]
[37.85-(7.85+6.4)] ×30
28×(5+969.9÷318)
81÷[(72-54)×9]
57×12-560÷35
848-640÷16×12
960÷(1500-32×45)
[192-(54+38)]×67
138×25×4
(13×125)×(3×8)
(12+24+80)×50
704×25 25×32×125
32×(25+125)
178×101-178
84×36+64×84
75×99+2×75
83×102-83×2
98×199
123×18-123×3+85×123
50×(34×4)×3 25×(24+16)
178×99+178
79×42+79+79×57
7300÷25÷4 8100÷4÷75
75×27+19×2 5
31×870+13×310
4×(25×65+25×28)
138×25×4
(13×125)×(3×8)
(12+24+80)×50
25×32×125
32×(25+125)
102×76 58×98
178×101-178
84×36+64×84
75×99+2×75
83×102-83×2
98×199
123×18-123×3+85×123
50×(34×4)×3
25×(24+16)
178×99+178
79×42+79+79×57
7300÷25÷4
8100÷4÷75