早教吧作业答案频道 -->数学-->
脱式计算.0.25×9.87×436.7×2.1+10.88.45-0.45×0.10.544÷0.16+0.8412.6÷0.28+2.3×4.48.4×1.8+8.4×8.1
题目详情
脱式计算.
0.25×9.87×4 | 36.7×2.1+10.8 | 8.45-0.45×0.1 |
0.544÷0.16+0.84 | 12.6÷0.28+2.3×4.4 | 8.4×1.8+8.4×8.1 |
▼优质解答
答案和解析
(1)0.25×9.87×4
=(0.25×4)×9.87
=1×9.87
=9.87
(2)36.7×2.1+10.8
=77.07+10.8
=87.87
(3)8.45-0.45×0.1
=8.45-0.045
=8.405
(4)0.544÷0.16+0.84
=3.4+0.84
=4.24
(5)12.6÷0.28+2.3×4.4
=45+10.12
=55.12
(6)8.4×1.8+8.4×8.1
=8.4×(1.8+8.1)
=8.4×9.9
=8.4×(10-0.1)
=8.4×10-8.4×0.1
=84-0.84
=83.16
=(0.25×4)×9.87
=1×9.87
=9.87
(2)36.7×2.1+10.8
=77.07+10.8
=87.87
(3)8.45-0.45×0.1
=8.45-0.045
=8.405
(4)0.544÷0.16+0.84
=3.4+0.84
=4.24
(5)12.6÷0.28+2.3×4.4
=45+10.12
=55.12
(6)8.4×1.8+8.4×8.1
=8.4×(1.8+8.1)
=8.4×9.9
=8.4×(10-0.1)
=8.4×10-8.4×0.1
=84-0.84
=83.16
看了 脱式计算.0.25×9.87...的网友还看了以下:
草地上原来有8只羊,又跑来6只,现在有多少只?列式计算正确的是A.8-6=2(只)B.8+6=14 2020-05-13 …
4+5+6+7+8 列成乘法算式怎么列?7=6+1 8=6+2 4+5+6+7+8 =4+2+5+ 2020-05-13 …
8比6多百分之几?正确的列式是()A.(8-6)÷8B.(8-6)÷6C.(8-6)÷(8+6) 2020-05-14 …
脱式计算,能简算简算,.脱式计算,能简算简算5/6-2/3+1/87/10+3/8-1/55/16 2020-05-16 …
数学以下算式的凑十运算.记住是凑十法9+5,9+6,9+7,9+8.8+5,8+6,8+7,8+8 2020-06-20 …
用竖式计算,并验算.①6.8÷o.h②4.6÷1.h③h.4÷o.18④h.h8÷8.6⑤h.98 2020-07-29 …
根式运算加减法求和:S=1/[(6√4)+(4√6)]+1/[(8√6)+(6√8)]+1/[(1 2020-07-30 …
题目在下面,麻烦给出列式.摆1个金鱼要8根火柴棒,摆2个金鱼要8+6=14根火柴棒,摆三个金鱼要:8 2020-11-03 …
题目在下面,麻烦给出列式.摆1个金鱼要8根火柴棒,摆2个金鱼要8+6=14根火柴棒,摆三个金鱼要:8 2020-11-03 …
直接写出得数7.4-2=2.6+0.7=84÷2.1=0.9-0.9÷9=3.25×4=0.8×0. 2020-11-26 …