题目内容
| 估算下面各题. 505×37≈ | 496×11≈ | 203×25≈ |
| 191×69≈ | 621×43≈ | 901×21≈ |
| 505×37≈20000, | 496×11≈5000, | 203×25≈5000, |
| 191×69≈14000, | 621×43≈24000, | 901×21≈18000. |
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题目内容
| 估算下面各题. 505×37≈ | 496×11≈ | 203×25≈ |
| 191×69≈ | 621×43≈ | 901×21≈ |
| 505×37≈20000, | 496×11≈5000, | 203×25≈5000, |
| 191×69≈14000, | 621×43≈24000, | 901×21≈18000. |