题目内容
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 |
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题目内容
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 |