直接写得数.
+= | += | -= | 0.25×8= | 0.9×0.2= |
-= | += | 10-= | 1.25×(0.8+0.08)= | 0.25×3.2= |
计算下面各题,能简算的要简算.
0.89×100.1 | 146.5-(23+46.5) | 5.83×2+5.83×8 | 45.9÷8÷0.125. |
+= | += | -= | 0.25×8= | 0.9×0.2= |
-= | += | 10-= | 1.25×(0.8+0.08)= | 0.25×3.2= |
0.89×100.1 | 146.5-(23+46.5) | 5.83×2+5.83×8 | 45.9÷8÷0.125. |