408-12×24 = 408 - 288 = 120
(46+28)×60 = 74 x 60 = 4440
42×50-17 = 2100- 17 = 2083
32+105÷5 = 32 + 21 = 53
420×(327-238) = 420 x 89 = 37380
(4121+2389)÷7 = 6510 ÷7 = 930
3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1
0.8×[(10-6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16
5.67×0.2-0.62 = 1.134-0.62 = 0.514
0.4×0.7×0.25 = 0.4 x 0.25 x 0.7 = 0.1 x 0.7 = 0.07
0.78+5.436+1 = 6.216 +1 = 7.216
30.8÷[14-(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10
[60-(9.5+28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 120
2.881÷0.43-0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86
【简便计算】
简便计算是一种特殊的计算,它运用了运算定律与数字的基本性质,从而使计算简便,使一个很复杂的式子变得很容易计算出得数。
【脱式计算】
即递等式计算,需将一系列的数字逐步计算。在脱式计算中要先算乘、除法,后算加、减法。在乘除法连继计算时中,要按从左往右的顺序依次计算,在四则运算中,加法和减法叫做第一级运算,乘法和除法叫做第二级运算。
【注意事项】
在进行简便运算( 四则运算)时,应注意运算符号(乘除和加减)和大、中、小括号之间的关连。不要越级运算,以免发生运算错误。
【乘法分配律】
简便计算中最常用的方法是 乘法分配律。乘法分配律指的ax(b+c)=axb+axc其中a,b,c是任意实数。相反的,axb+axc=ax(b+c)叫做乘法分配律的逆运用(也叫提取 公约数),尤其是a与b互为补数时,这种方法更有用。
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50道五年级脱式计算题带过程和答案,有答案和过程的加分,谢谢了。
对不起,给你说几道就行了,因为给你说了,我们还要因为这个给你算题呀,我给你推送一个,用作业帮或者快对作业就行 0.46×0.25×4 =0.25×4×0.4 =1×0.4 =0.4 132+12×37 =132+314 =446 319+32×56 =319+1512 =1831 250+23+38 =250+624 =874
839 浏览230512019-11-08
100道五年级脱式计算题带答案和过程都有哪些?
5.4÷1.8+240×1.5=3+360=363 9000÷72×(1.25×0.7×8)=9000÷72×7=125×7=875 1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.51.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 1/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5 4800÷25÷4=4800÷(25x4)=4800÷100=4800÷100=48 2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8 3/4-(3/7-1/4)=3/4+1/4-3/7=1-3/7=4/7 3.2x0.125x2.5=0.125x8x(0.4x2.5)=1x1=1 0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=1000 1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5 9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2 1.24×8.3+8.3×1.76=8.3×(1.24+1.76)=8.3×3=24.9 9999×1001=9999×(1000+1)=9999×1000+9999×1=10008999 14.8×6.3-6.3×6.5+8.3×3.7=(14.8-6.5)×6.3+8.3×3.7=8.3×6.3+8.3×3.7=8.3×(6.3+3.7)=8.3×10=83 1.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 933-157-43=933-(157+43)=933-200=733 4821-998=4821-1000+2=3823 32×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=100000 1.8+18÷1.5-0.5×0.3=1.8+12-0.15=13.8-0.15=13.65 6.5×8+3.5×8-47=52+28-47=80-47=33 3.7x2.56-2.3=9.472-2.3=7.1721.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78 1/2-(4/5-1/2)=1/2+1/2-4/5=1-4/5=1/5 4800÷25÷4=4800÷(25x4)=4800÷100=4800÷100=48 2/5-(3/8-3/5)=2/5+3/5-3/8=1-3/8=5/8 3/4-(3/7-1/4)=3/4+1/4-3/7=1-3/7=4/7 3.2x0.125x2.5=0.125x8x(0.4x2.5)=1x1=1 0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=1000 1.25×(8+10)=1.25×8+1.25×10=10+12.5=22.5 9123-(123+8.8)=9123-123-8.8=9000-8.8=8991.2 1.24×8.3+8.3×1.76=8.3×(1.24+1.76)=8.3×3=24.9 61-(1.25+2.5×0.7)=61-3=58 [(10-0.8)+9.85]-2÷0.125=19.05-2÷0.125=19.05-16=3.05 408-12×24 = 408 - 288 = 120(46+28)×60 = 74 x 60 = 4440 42×50-17 = 2100- 17 = 2083 32+105÷5 = 32 + 21 = 53 420×(327-238) = 420 x 89 = 37380 (4121+2389)÷7 = 6510 ÷7 = 930 3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1 0.8×[(10-6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16 5.67×0.2-0.62 = 1.134-0.62 = 0.514 0.4×0.7×0.25 = 0.4 x 0.25 x 0.7 = 0.1 x 0.7 = 0.07 0.78+5.436+1 = 6.216 +1 = 7.216 30.8÷[14-(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10 [60-(9.5+28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 120 2.881÷0.43-0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86 5.38+7.85-5.37= 13.23 - 5.37=7.86 7.2÷0.8-1.2×5=9 - 6 =3 6-1.19×3-0.43= 6-3.57 - 0.43 = 6- (3.57 + 0.43) = 6-4 = 2 6.5×(4.8-1.2×4)= 6.5 x(4.8 - 4.8 )=6.5 x0 = 0 0.68×1.9+0.32×1.9 = (0.68 + 0.32) x1.9 = 1 x 1.9 = 1.9 10.15-10.75×0.4-5.7 = 10.15 - 4.3 - 5.7 = 10.15 -(4.3 + 5.7)=10.15 - 10 =0.15 5.8×(3.87-0.13)+4.2×3.74 = 5.8 x 3.74 +4.2 x 3.74 = (5.8 +4.2)x3.74 = 10 x 3.74 = 37.4 20×[(2.44-1.8)÷0.4+0.15] = 20x (0.64 ÷0.4 +0.15)= 20x(1.6 +0.15) = 20 x1.75 = 35 28-(3.4+1.25×2.4) = 28 - (3.4 + 3) = 28 - 6.4 = 21.6 2.55×7.1+2.45×7.1 = (2.55 + 2.45) x7.1 = 5 x7.1=35.5 0.8×〔15.5-(3.21+5.79)〕 = 0.8 x (15.5 - 9) = 0.8 x 6.5 = 5.2 (31.8+3.2×4)÷5 = (31.8 + 12.8)÷5 = 44.6÷5 = 8.92 31.5×4÷(6+3) = 126 ÷ 9 = 14 2÷2.5+2.5÷2 = 0.8 + 1.25 =2.05 194-64.8÷1.8×0.9 = 194 -36 x0.9 = 194-32.4 = 161.65180-705×6 = 5180 - 4230=950 24÷2.4-2.5×0.8 =10 -2=8 405×(3213-3189) =405x24 = 9720 125×(97-81) =125x16 =2000 6942+480÷3 = 6942 + 160 = 6782 20+80÷4-20 = 20 + 20 -20 = 40 -20 = 20 100÷(32-30)×0 = 100 ÷2 x0= 50 x0 = 0 25×4-12×5 = 100 - 60 = 40 70×〔(42-42)÷18〕=70 x (0÷18) = 70x0 = 0 75×65+75×35 = 75 x (65 +35) = 75x100 = 7500 6-1.6÷4= 6- 0.4 = 5.6 32.52-(6+9.728÷3.2)×2.5 = 32.52 - (6+3.04)x2.5 = 32.52 - 9.02 x 2.5 = 32.52 -22.55 = 9.97 (136+64)×(65-345÷23)= 200x(65-15) = 200x 50=10000
1420 浏览58842020-03-06
五年级脱式简便运算200道,及答案
3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5 7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8 0.25×0.28 0.125×3.2×2.5 35×40.2 0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5 3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73 3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6 4.9÷3.5 7÷0.25÷4 7÷0.125 7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55 3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403 3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36 12.7-(3.7+0.84) 36.54-1.76-4.54 0.25×0.73×4 7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×4 1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.35 0.8×(4.3×1.25) 3.12+3.12×99 28.6×101-28.6 (4.23+6.17)×0.8 0.86×15.7-0.86×14.7 2.4×102 14-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5 (2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5 4.5÷1.8 4.2÷3.5 930÷0.6÷5 63.4÷2.5÷0.4 4.9÷1.4 3.9÷(1.3×5) (7.7+1.54)÷0.7 2.5×2.4 2.7÷45 0.35×1.25×2×0.8 32.4×0.9+0.1×32.4 15÷0.25 70÷28 15÷(0.15×0.4) 4.25÷2.5×9.9+0.17 3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5 7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8 0.25×0.28 0.125×3.2×2.5 35×40.2 0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5 3.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73 3.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.6 4.9÷3.5 7÷0.25÷4 7÷0.125 7.35÷(7.35×0.25) 7.35÷(7.35÷0.25) 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.55 3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403 3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36 12.7-(3.7+0.84) 36.54-1.76-4.54 0.25×0.73×4 7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×4 1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.35 0.8×(4.3×1.25) 3.12+3.12×99 28.6×101-28.6 (4.23+6.17)×0.8 0.86×15.7-0.86×14.7 2.4×102 14-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5 (2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5 4.5÷1.8 4.2÷3.5 930÷0.6÷5 63.4÷2.5÷0.4 4.9÷1.4 3.9÷(1.3×5) (7.7+1.54)÷0.7 2.5×2.4 2.7÷45 0.35×1.25×2×0.8 32.4×0.9+0.1×32.4 15÷0.25 70÷28 15÷(0.15×0.4) 4.25÷2.5×9.9+0.17 6.9+4.8+3.1 15.89+(6.75-5.89) 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2 13.75-(3.75+6.48) 47.8-7.45+2.55 66.86-8.66-1.34 0.25×16.2×4 0. 25×32 ×0.125 2 .5 ×(4 +0.4) (1.25-0.125)×8 4.8×100.1 4.2×99 56.5×9.9+56.5 5.4×11-5.4 3.83×4.56+3.83×5.44 7.09×10.8-0.8×7.09 3.65×4.7-36.5×0.37 13.7×0.25-3.7÷4 10.7×16.1-1.1×10.7 +10.7 ×5 4.9÷1.4 3.9÷(1.3×5) 63.4÷2.5÷0.4 (7.7+1.4)÷0.7 18 ÷ (2+9) 1. 0.18 +4.26 -0.18 +4.26 ☆ 2. 0.58 ×1.3 ÷ 0.58 ×1.3 ☆ 3. 7.3 ÷4 + 2.7 × 0.25 ☆ 4. 3.75 × 0.5 - 2.75 ÷ 2 ☆ 5. 5.26 × 0.125 + 2.74 ÷ 8 ☆ a ÷ b ÷ c = a ÷ (b × c) 6. 6.3 ÷ 1.8 7. 4.2 ÷ 3.5 8. 9.5 ÷(1.9 × 8) 9. 12.8 ÷ (0.4 × 1.6) 10. 930 ÷ 0.6 ÷5 11. 63.4 ÷ 2.5 ÷ 0.4 12. (7.7 + 1.54)÷ 0.7 ☆ 13. (11.7 + 9.9)÷ 0.9 ☆ 1. 0.45 × 201 2. 0.58 × 10.1 3. 50.2 × 99 4. 4.7 × 9.9 5. 3.28 × 5.7 + 6.72 × 5.7 6. 2.1 × 99 + 2.1 7. 1.7 × 9.9 + 0.17 8. 23 × 0.1 + 2.3 × 9.9 玩转TA0001A 2014-11-16 其他类似问题 求100道小学五年级简便计算.急!谢谢!2014-10-27 我要的就是题,2014-10-22 五年级小数简便运算200道急2014-10-22 1题是:13.91乘8+6.09除0.125 二题是:2.93乘5.4+29.3除0.462014-11-13 0.25×8.19-0.25×4.192014-10-15 其他回答 26-14)×8 50×(2+80) (10×12)-63 (27-23)×12 (38-16)×24 (24+38)×6 (87-42)×15 (84-15×3) 16×(49-28) 45×(84-48] ) (58+37)×6 ... 展开 fangjg 2014-11-17 一、观察下面的算式,它们是根据什么定律或性质成立的: 第一组 125÷25=(125×4)÷(25×4) 7000÷125=(7000×8)÷(125×8) 6400÷800=(6400÷100)÷(800÷100) 第二组 78×99=78×100-78×1 58×95+42×95=(58+42)×95 (125+23)×8=125... 展开 63846249624694 2014-11-16 ©2017 作业帮 联系方式:service
103 浏览62792017-08-26
小学五年级数学(上册)脱式计算200题.简便运算150另附加答案
6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89) 4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48) 3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2 3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.47 5.27+2.86-0.66+1.63 13.35-4.68+2.65 73.8-1.64-13.8-5.36 47.8-7.45+8.8 0.398+0.36+3.64 15.75+3.59-0.59+14.25 66.86-8.66-1.34 0.25×16.2×4 (1.25-0.125)×8 3.6×102 3.72×3.5+6.28×3.5 36.8-3.9-6.1 15.6×13.1-15.6-15.6×2.1 4.8×7.8+78×0.52 32+4.9-0.9 4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09 25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷8 18.76×9.9+18.76 3.52÷2.5÷0.4 先给你这么多了,要是答案的话,可以自己做完了再给爸妈检查,如果要答案抄的话,这些题是不会记在脑子里的。 3.9-4.1+6.1-5.9
355 浏览12450
小学五年级小数脱式简便计算题带答案
小学五年级小数脱式简便计算题案例如下: 计算技巧:在两个数a、b同时乘以或者处以相同数c,然后进行加减的时候,可以先加减a、b这两个数,然后在与c进行乘除计算,如下: 0.5÷2-0.15÷2=(0.5-0.15)÷2=0.35÷2=0.175; 0.5X2-0.15X2=(0.5-0.15)X2=0.35X2=0.7; 计算技巧:在加减乘除中非上例条件时候,即abcd四个自然数没有规律的时候,进行加减乘除,要先进行乘除(先算a÷b和c×d),最后进行加减运算,如下: 2.881÷0.43-0.24×3.5=6.7-0.24 x3.5= 6.7-0.84=5.86; 计算技巧:在运算符号大、中、小括号与乘除加减之间,先运算大括号内小括号中的数,然后计算大括号中的数,最后在进行括号外的数的乘除加减运算,如下: 30.8÷[14-(9.85+1.07)]=30.8÷(14-10.92)=30.8÷3.08=10; 扩展资料: 简便计算:简便计算是一种特殊的计算,它运用了运算定律与数字的基本性质,从而使计算简便,使一个很复杂的式子变得很容易计算出最终得数。 脱式计算:即递等式计算,需将一系列的数字逐步计算。在脱式计算中要先算乘、除法,后算加、减法。在乘除法连继计算时中,要按从左往右的顺序依次计算,在四则运算中,加法和减法叫做第一级运算,乘法和除法叫做第二级运算。 乘法分配律:简便计算中最常用的方法是乘法分配律。乘法分配律指的ax(b+c)=axb+axc其中a、b、c是任意实数。相反的,axb+axc=ax(b+c)叫做乘法分配律的逆运用(也叫提取公约数),尤其是a与b互为补数时,这种方法更有用。 注意事项:在进行简便运算(四则运算)时,应注意运算符号(乘除和加减)和大、中、小括号之间的关联。不要越级运算,以免发生运算错误。
21 浏览86932020-01-15
评论两句41
408-12×24 = 408 - 288 = 120
(46+28)×60 = 74 x 60 = 4440
42×50-17 = 2100- 17 = 2083
32+105÷5 = 32 + 21 = 53
420×(327-238) = 420 x 89 = 37380
(4121+2389)÷7 = 6510 ÷7 = 930
3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1
0.8×[(10-6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16
5.67×0.2-0.62 = 1.134-0.62 = 0.514
0.4×0.7×0.25 = 0.4 x 0.25 x 0.7 = 0.1 x 0.7 = 0.07
0.78+5.436+1 = 6.216 +1 = 7.216
30.8÷[14-(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10
[60-(9.5+28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 120
2.881÷0.43-0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86
【简便计算】
简便计算是一种特殊的计算,它运用了运算定律与数字的基本性质,从而使计算简便,使一个很复杂的式子变得很容易计算出得数。
【脱式计算】
即递等式计算,需将一系列的数字逐步计算。在脱式计算中要先算乘、除法,后算加、减法。在乘除法连继计算时中,要按从左往右的顺序依次计算,在四则运算中,加法和减法叫做第一级运算,乘法和除法叫做第二级运算。
【注意事项】
在进行简便运算( 四则运算)时,应注意运算符号(乘除和加减)和大、中、小括号之间的关连。不要越级运算,以免发生运算错误。
【乘法分配律】
简便计算中最常用的方法是 乘法分配律。乘法分配律指的ax(b+c)=axb+axc其中a,b,c是任意实数。相反的,axb+axc=ax(b+c)叫做乘法分配律的逆运用(也叫提取 公约数),尤其是a与b互为补数时,这种方法更有用。
08-12×24 = 408 - 288 = 120
(46+28)×60 = 74 x 60 = 4440
42×50-17 = 2100- 17 = 2083
32+105÷5 = 32 + 21 = 53
420×(327-238) = 420 x 89 = 37380
(4121+2389)÷7 = 6510 ÷7 = 930
3.416÷(0.016×35) = 3.416 ÷0.56 = 6.1
0.8×[(10-6.76)÷1.2] = 0.8 x(3.24÷1.2) = 0.8 x 2.7 = 2.16
5.67×0.2-0.62 = 1.134-0.62 = 0.514
0.4×0.7×0.25 = 0.4 x 0.25 x 0.7 = 0.1 x 0.7 = 0.07
0.78+5.436+1 = 6.216 +1 = 7.216
30.8÷[14-(9.85+1.07)] = 30.8 ÷ (14 - 10.92) = 30.8÷3.08 = 10
[60-(9.5+28.9)]÷0.18 = (60- 38.4)÷0.18 = 21.6 ÷0.18 = 120
2.881÷0.43-0.24×3.5 = 6.7 - 0.24 x3.5 = 6.7 - 0.84 = 5.86
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