能简算的要简算.
19.28+1.82÷0.7 |
13.35﹣4.6+2.65 |
4.36×12.5×8 |
9.7×99+9.7 |
320÷1.25÷8 |
2.25×[0.576÷(2.56+3.2)] |
竖式计算.
7.082﹣5.985
4.58×1.05
★40.8÷0.3
8.07×0.32
24.4÷7.4.
口算.
0.76﹣0.6= |
8.4×5= |
3.2﹣1.34﹣1.66= |
1.25×0.8= |
7.2÷0.072= |
12.8﹣0.28= |
3.6×0.7÷3.6×0.7= |
2.5f﹣f= |
下面各题,怎样算简便就怎样算.
6.8+0.98+0.2
43.5+43.5×99
1.25×7.2
11÷[(0.4+0.04)×0.5].
用竖式计算
19﹣0.07=
0.63×3.6=
9.45+0.65=
5.15÷86≈(保留两位小数)
直接写得数.
1.4+3.6= |
0.3×0.3= |
0.49÷7= |
7.2÷100= |
3.6÷0.6= |
1﹣0.8÷2= |
1﹣0.7= |
4.2÷3= |
15×0.4= |
1÷0.25= |
0.23×0.5= |
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