简便方法计算
|
| (1)原式=1.29+0.71+(3.7+6.3) =12 | (2)原式=(528+472)×78 =78000 |
| (3)原式=125×8×89 =89000 | (4)原式=43×(100-1) =4257 |
编辑:chaxungu时间:2026-04-27 13:34:05分类:小学数学题库
简便方法计算
|
| (1)原式=1.29+0.71+(3.7+6.3) =12 | (2)原式=(528+472)×78 =78000 |
| (3)原式=125×8×89 =89000 | (4)原式=43×(100-1) =4257 |