计算下面各题,能简便的要用简便方法计算.
1.3+0.94+0.06+7.7 | 6.27÷0.3+3 | 12.5×0.48×0.8 | 5.2×[(1.3+2.1)÷0.2]. |
口算 1500÷3= | 4.8-4.5= | 309÷3= | 5200-700= |
1.4+0.6= | 300×50= | 0÷5= | 75÷9= |
14×3= | 1.5+1= | 125+37= | 250×4= |
99×100= | 986-986= | 26÷2= | 25×2×0. |
1.3+0.94+0.06+7.7 | 6.27÷0.3+3 | 12.5×0.48×0.8 | 5.2×[(1.3+2.1)÷0.2]. |
口算 1500÷3= | 4.8-4.5= | 309÷3= | 5200-700= |
1.4+0.6= | 300×50= | 0÷5= | 75÷9= |
14×3= | 1.5+1= | 125+37= | 250×4= |
99×100= | 986-986= | 26÷2= | 25×2×0. |