笔算下面各题.
(1)6.05﹣3.49 (2)7.2×0.15 (3)4.2÷4.5.
直接写出得数.
5.1﹣2= 7.2÷1.2= 3.9×0.01= 98.4÷100=
2.5×4= 2.6k﹣1.8k= 13b+2.7b= 0.34+0.45=
计算下面各题,并且验算.
73.3﹣4.46 27.8×1.02
354.36+47.7 0.24÷1.6
5060﹣485 12.48÷1.6.
口算题
0.25×4= 4÷0.01= 3.5+7.5=(2.5﹣0.25)×4=
0.96÷0.3= 7.3×0.01= 7.2÷0.12= 12.5×0.7×0.8=
直接写得数:
8.6+2.4= 0.35÷0.7= 0.5×0.2= 1.25×8= 0.36×100=
1﹣0.09﹣0.9= 2.8+3.2= 0÷8×0.25= 12.3﹣2.3=