六年级数学100道脱式计算带过程带答案 急急急 !!!

六年级数学100道脱式计算带过程带答案
急急急 !!!谢谢!

1、1.25×(8+10)

=1.25×8+1.25×10

=10+12.5

=22.5

2、1.24+0.78+8.76

=(1.24+8.76)+0.78

=10+0.78

=10.78

3、1/2-(4/5-1/2)

=1/2+1/2-4/5

=1-4/5

=1/5

4、4800÷25÷4

=4800÷(25x4)

=4800÷100

=4800÷100

=48

5、2/5-(3/8-3/5)

=2/5+3/5-3/8

=1-3/8

=5/8

6、3/4-(3/7-1/4)

=3/4+1/4-3/7

=1-3/7

=4/7

7、3.2x0.125x2.5

=0.125x8x(0.4x2.5)

=1x1

=1

8、0.4×125×25×0.8

=(0.4×25)×(125×0.8)

=10×100

=1000

9、1.25×(8+10)

=1.25×8+1.25×10

=10+12.5

=22.5

10、9123-(123+8.8)

=9123-123-8.8

=9000-8.8

=8991.2

温馨提示:内容为网友见解,仅供参考
第1个回答  2020-11-14

一、6÷3/8 – 3/8 ÷6

=1/6x(3/8-3/8)

=1/6x0

=0

二、4/7 ×5/9 + 3/7 × 5/9

=(4/7+3/7)x5/9

=1x5/9

=5/9

三、5/2 -( 3/2 + 4/5 )

=5/2-3/2-4/5

=1-4/5

=1/5

四、6 ×( 1/2 + 2/3 )

=6x1/2+6x2/3

=3+4

=7

五、8 × 4/5 + 8 × 11/5

=8x(4/5+11/5)

=8x3

=24

六、31 × 5/6 – 5/6

=(31-1)x5/6

=30x5/6

=25

七、4/5 × 25/16 + 2/3 × 3/4

=5/4+1/2

=5/4+2/4

=7/4

八、101 × 1/5 – 1/5 × 21

=(101-21)x1/5

=80x1/5

=16

九、解比例:

8 : x = 24 : 15 x : 0.15 = 3.6 : 910 1.2x = 45

2.4 : 135 = 12 : x 110 : x = 0.2 : 14 3.6 : 15 = x : 2212

十、简便运算:

① 4×127 +4×29 + 57 ×4 ② 567+98 ③ 213 ×12.5×67 ×8 ④ 127 - 56 - 16

⑤ 2178 ÷7 ⑥ (13 + 15 )×45 ⑦ 0.4×7+0.4×3

扩展资料:

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。含有两种或两种以上的运算的算式,通常称为混合运算。加、减、乘、除的混合运算也叫做四则混合运算。在四则混合运算中,规定的计算先后次序,称为运算顺序。数学上规定的四则运算顺序如下:

(1)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。

(2)一至二级运算

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”。

参考资料来源:百度百科-脱式计算

本回答被网友采纳
第2个回答  2018-01-22
六年级数学脱式计算带过程带答案 急急急
1.6÷ 3/8 – 3/8 ÷6
=1/6x(3/8-3/8)
=1/6x0
=0
2.4/7 × 5/9 + 3/7 × 5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
3.5/2 -( 3/2 + 4/5 )
=5/2-3/2-4/5
=1-4/5
=1/5
4.6 ×( 1/2 + 2/3 )
=6x1/2+6x2/3
=3+4
=7
5.8 × 4/5 + 8 × 11/5
=8x(4/5+11/5)
=8x3
=24
6.31 × 5/6 – 5/6
=(31-1)x5/6
=30x5/6
=25
7.4/5 × 25/16 + 2/3 × 3/4
=5/4+1/2
=5/4+2/4
=7/4
8.101 × 1/5 – 1/5 × 21
=(101-21)x1/5
=80x1/5
=16本回答被提问者和网友采纳
第3个回答  2019-01-16
1.6÷ 3/8 – 3/8 ÷6
=1/6x(3/8-3/8)
=1/6x0
=0
2.4/7 × 5/9 + 3/7 × 5/9
=(4/7+3/7)x5/9
=1x5/9
=5/9
3.5/2 -( 3/2 + 4/5 )
=5/2-3/2-4/5
=1-4/5
=1/5
4.6 ×( 1/2 + 2/3 )
=6x1/2+6x2/3
=3+4
=7
5.8 × 4/5 + 8 × 11/5
=8x(4/5+11/5)
=8x3
=24
6.31 × 5/6 – 5/6
=(31-1)x5/6
=30x5/6
=25
7.4/5 × 25/16 + 2/3 × 3/4
=5/4+1/2
=5/4+2/4
=7/4
8.101 × 1/5 – 1/5 × 21
=(101-21)x1/5
=80x1/5
=16
点赞,谢谢
第4个回答  2022-02-13
1.6÷ 3/8 – 3/8 ÷6 =1/6x(3/8-3/8) =1/6x0 =0 2.4/7 × 5/9 + 3/7 × 5/9 =(4/7+3/7)x5/9 =1x5/9 =5/9 3.5/2 -( 3/2 + 4/5 ) =5/2-3/2-4/5 =1-4/5 =1/5 4.6 ×( 1/2 + 2/3 ) =6x1/2+6x2/3 =3+4 =7 5.8 × 4/5 + 8 × 11/5 =8x(4/5+11/5) =8x3 =24 6.31 × 5/6 – 5/6 =(31-1)x5/6 =30x5/6 =25 7.4/5 × 25/16 + 2/3 × 3/4 =5/4+1/21.6÷ 3/8 – 3/8 ÷6 =1/6x(3/8-3/8) =1/6x0 =0 2.4/7 × 5/9 + 3/7 × 5/9 =(4/7+3/7)x5/9 =1x5/9 =5/9 3.5/2 -( 3/2 + 4/5 ) =5/2-3/2-4/5 =1-4/5 =1/5 4.6 ×( 1/2 + 2/3 ) =6x1/2+6x2/3 =3+4 =7 5.8 × 4/5 + 8 × 11/5 =8x(4/5+11/5) =8x3 =24 6.31 × 5/6 – 5/6 =(31-1)x5/6 =30x5/6 =25 7.4/5 × 25/16 + 2/3 × 3/4 =5/4+1/2

六年级数学100道脱式计算带过程带答案 急急急 !!!
1、1.25×(8+10)=1.25×8+1.25×10 =10+12.5 =22.5 2、1.24+0.78+8.76 =(1.24+8.76)+0.78 =10+0.78 =10.78 3、1\/2-(4\/5-1\/2)=1\/2+1\/2-4\/5 =1-4\/5 =1\/5 4、4800÷25÷4 =4800÷(25x4)=4800÷100 =4800÷100 =48 5、2\/5-(3\/8-3\/5)=2\/5+...

六年级上册数学脱式计算及答案大全
六年级上册数学中,脱式计算是一个重要的知识点。脱式计算主要是指将含有未知数的式子中的未知数都计算出来,得到最终的结果。下面是六年级上册数学脱式计算及答案大全:1. 5x + 3 = 23 解:5x = 23 - 3 = 20 x = 20 ÷ 5 = 4 2. 8y - 11 = 37 解:8y = 37 + 11 = 48 y =...

六年级数学100道脱式计算带过程带答案 急急急 !!!
六年级数学脱式计算带过程带答案 急急急 1.6÷ 3\/8 –3\/8 ÷6 =1\/6x(3\/8-3\/8)=1\/6x0 =0 2.4\/7 × 5\/9 + 3\/7 × 5\/9 =(4\/7+3\/7)x5\/9 =1x5\/9 =5\/9 3.5\/2 -(3\/2 + 4\/5 )=5\/2-3\/2-4\/5 =1-4\/5 =1\/5 4.6 ×(1\/2 + 2\/3 )=6x1\/2+6x...

有100道脱式简便计算题带答案和过程吗
9. 4821-998=4821-1000+22=3823 10. 32×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=100000 9048÷26=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+2600÷26+1248÷26=100+100+100+48=348 11. 2881÷ 43=(1290+1591)÷ 43=1290÷43+1591÷43=30+37 =67 3....

小学六年级数学脱式计算100道 要有答案的 急啊!!!
1.125*3+125*5+25*3+25=1100 2.9999*3+101*11*(101-92)=39996 3.(23\/4-3\/4)*(3*6+2)=100 4. 3\/7 × 49\/9 - 4\/3=1 5. 3\/4 × 8\/9 - 1\/3=1\/3 6. 12× 5\/6 – 2\/9 ×3=28\/3 7. 8× 5\/4 + 1\/4=41\/4 8. 6÷ 3\/8 – 3\/8 ÷6= 9. 4\/7...

六年级上册数学题100道,可以有脱式计算,简便运算(最好少些),解方程...
=100×1000 =100000 9048÷26 =(2600+2600+2600+1248)÷26 =2600÷26+2600÷26+2600÷26+1248÷26 =100+100+100+48 =348 2881÷ 43 =(1290+1591)÷ 43 =1290÷43+1591÷43 =30+37 =67 3.2×42.3×3.75-12.5×0.423×16 =3.2×42.3×3.75-1.25×42.3×1.6 =42....

六年级上册数学脱式计算?
157×23\/156 =(156+1)×23\/156 =156×23\/156+23\/156 =23+23\/156 =23又23\/156 2014×20152015-2015×20142014 =2014×2015×10001-2015×2014×10001 =0

一百道六年级简便计算脱式计算题 有过程 有答案 急!!!
=9+90+900+9000+90000-5 =99999-5 =99994 0.67×2.1+0.018×21+8.5×0.79 =0.67×2.1+0.18×2.1+8.5×0.79 =(0.67+0.18)×2.1+8.5×0.79 =0.85×2.1+0.85×7.9 =0.85×(2.1+7.9)=0.85×10 =8.5 22222.2×9.99999 =22222.2×(10-0.00001)=...

脱式计算题六年级带答案及过程脱式计算练习题六年级及答案
关于脱式计算题六年级带答案及过程,脱式计算练习题六年级及答案这个很多人还不知道,今天来为大家解答以上的问题,现在让我们一起来看看吧!1、1650-480÷16*15=1650-450=12001.3÷0.5÷2.6=2.6\/2.6=1496+250*16=496+4000=4496123+5.67+8.77*567=5101.26123+5.67+8.77*567=123+567...

小学六年级数学脱式计算(能简便的要简便运算):
= 0.65+9.35 =

相似回答