用递等式计算。
|
| (1)原式=8+7.8+10.5 =15.8+10.5 =26.3 | (2)原式=70.72-35.604 =35.116 |
| (3)原式=0.38-0.17 =0.21 | (4)原式=70.2-15.2 =55 |
| (5)原式=7.84+7.85 =15.69 | (6)原式=20-15.28 = 4.72 |
| (7)原式=8.82-3.46 =5.36 | (8)原式=27.87-22.94 =4.93 |
编辑:chaxungu时间:2026-04-27 13:09:54分类:小学数学题库
用递等式计算。
|
| (1)原式=8+7.8+10.5 =15.8+10.5 =26.3 | (2)原式=70.72-35.604 =35.116 |
| (3)原式=0.38-0.17 =0.21 | (4)原式=70.2-15.2 =55 |
| (5)原式=7.84+7.85 =15.69 | (6)原式=20-15.28 = 4.72 |
| (7)原式=8.82-3.46 =5.36 | (8)原式=27.87-22.94 =4.93 |