题目内容
| 计算下面各题,怎样简便就怎样算。 | ||||||
|
| (1)47+133+253+67 =47+253+(133+67) =500 |
(2)390÷6÷5 =390÷30 =13 |
(3)(45+32)×8÷22 =77×8÷22 =28 |
| (4)75×99 =7500-75 =7425 |
(5)108+63+37-8 =108-8+(63+37) =200 |
(6)33×77+7×77 =77×40 =3080 |
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题目内容
| 计算下面各题,怎样简便就怎样算。 | ||||||
|
| (1)47+133+253+67 =47+253+(133+67) =500 |
(2)390÷6÷5 =390÷30 =13 |
(3)(45+32)×8÷22 =77×8÷22 =28 |
| (4)75×99 =7500-75 =7425 |
(5)108+63+37-8 =108-8+(63+37) =200 |
(6)33×77+7×77 =77×40 =3080 |