| 计算下面各题(能简算的要简算) (730-80÷2)÷23 38×7+62×7 46×101-46 800÷[(350+150)÷10]. |
| (1)(730-80÷2)÷23 =(730-40)÷23 =690÷23 =30; (2)38×7+62×7 =(38+62)×7 =100×7 =700; (3)46×101-46 =46×(101-1) =46×100 =4600; (4)800÷[(350+150)÷10] =800÷[500÷10] =800÷50 =16. |
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