题目内容
| 脱式计算。 | ||||||
|
| (1)247+326+148 =573+148 =721 |
(2)926-342-457 =584-457 =127 |
(3)352+(716-677) =352+39 =391 |
| (4)532-287+469 =245+469 =714 |
(5)75-35÷5 =75-7 =68 |
(6)(68-40)÷4 =28÷4 =7 |
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题目内容
| 脱式计算。 | ||||||
|
| (1)247+326+148 =573+148 =721 |
(2)926-342-457 =584-457 =127 |
(3)352+(716-677) =352+39 =391 |
| (4)532-287+469 =245+469 =714 |
(5)75-35÷5 =75-7 =68 |
(6)(68-40)÷4 =28÷4 =7 |