在横线里填入>、<或=. ________0.67 | 0.25________3.5% |
44%________ | 0.8________8% |
99.9%________1 | 16.7________ |
20%________ | 0.60________. |
用简便方法计算下面各题 1.Ol×6.3 | 2.18×3.12+6.88×2.18 |
4.4×25 | 0.25×39+0.25 |
0.8×5.67×12.5 | 4.4×3.8+6.6×3.8-3.8 |
8.6×102 | (0.2+4)×25 |
12.5×32×0.25. |