直接写得数 = | 728÷7= | = | = |
| 4.6×0.5= | = | = | = |
= | 0.7+0.4= | 60×500= | |+6|-|-2.1|= |
解: =3.7 | 728÷7=104 | =![]() | =0.9 |
| 4.6×0.5=2.3 | =2![]() | =4![]() | =2 |
=![]() | 0.7+0.4=1.1 | 60×500=30000 | |+6|-|-2.1|=3.9 |
,0.9,2.3,2
,4
,2,
,1.1,30000,3.9.分析:根据整数、分数、小数、正负数的加减乘除计算的方法进行计算,能简算的要简算.
点评:计算时,要灵活运用所学的知识,快速准确的进行计算.
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