= | 32×25%= | 0.75+2.5= | 3600÷30= |
= | ×5= | 0.32= | 4×25-25= |
| ________×0.5=1 | 1÷10+0.9= | ( )×20= | = |
分析:32×25%可将32拆分为8×4,再运用乘法结合律计算;
×5可根据乘法交换律计算;( )×0.5=1 根据乘除法的互逆关系计算即可;
(
)×20可根据乘法分配律计算;其余算式根据分数乘法、小数、整数的乘法、除法、加法的运算法则计算即可.
解答:
= , | 32×25%=8, | 0.75+2.5=3.25, | 3600÷30=120, |
= , | ×5=25, | 0.32=0.09, | 4×25-25=75, |
| 2×0.5=1, | 1÷10+0.9=1, | ( )×20=1, | = . |
,8,3.25,120,
,25,0.09,75,2,1,1,
.点评:完成此类题目要细心分析题目中的数据,能简便计算的要简便计算.
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