| 脱式计算。 | ||||||
|
| (1)692-(189+257) =692-446 =246 | (2)356+173-238 =529-238 =291 | (3)(72-48)÷8 =24÷8 =3 |
| (4)754+167-354 =400+167 =567 | (5)3800-143-857 =3800-1000 =2800 | (6)439-(154+139) =300-154 =146 |
编辑:chaxungu时间:2026-04-27 13:22:27分类:小学数学题库
| 脱式计算。 | ||||||
|
| (1)692-(189+257) =692-446 =246 | (2)356+173-238 =529-238 =291 | (3)(72-48)÷8 =24÷8 =3 |
| (4)754+167-354 =400+167 =567 | (5)3800-143-857 =3800-1000 =2800 | (6)439-(154+139) =300-154 =146 |