用简便方法计算。
|
| (1)原式=5.6+24.4+(13.38+9.62) =30+23 =53 | (2)原式=28-(13.31+6.69) =28-20 =8 |
| (3)原式=324.08-24.08-13.6 =300-13.6 =286.4 | (4)原式= 43.06+6.94-4.56 = 50-4.56 = 45.44 |
编辑:chaxungu时间:2026-04-27 13:34:06分类:小学数学题库
用简便方法计算。
|
| (1)原式=5.6+24.4+(13.38+9.62) =30+23 =53 | (2)原式=28-(13.31+6.69) =28-20 =8 |
| (3)原式=324.08-24.08-13.6 =300-13.6 =286.4 | (4)原式= 43.06+6.94-4.56 = 50-4.56 = 45.44 |