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- 2026-04-27估算 3.05×7.9 ≈ 5.01×7.2 ≈ 15.2÷0.48≈ 36.1÷0.59≈
- 2026-04-27一个数除以比1小的小数时.结果一定比原来这个数大. [ ]
- 2026-04-27用竖式计算.3.02 × 4.8 = 7.21 ÷ 0.89 = 0.94 × 0.65 = 5 + 16.2 = 2.06 × 120 = 8.49 ÷ 4.9 = 36.1 ÷ 0.58 = 8.
- 2026-04-27数学医院.(正确的在括号里打“ √ .错误的画“× 并改正.)
- 2026-04-27○里填上:>.< 或 =. 7.45×0.99○7.45 4.38 ×1.01○4.38 8.19 ÷1.7○8.19 164 ×0.88○1.64 ×88
- 2026-04-27直接写出得数.3.2 × 2 ＝ 0.2 × 1.3 = 0.05 × 1.2 = 0.6 ÷ 0.3 = 5.46 × 0 = 2.5 ÷ 0.5 = 1.6 ÷ 0.5 = 0.8 × 1.2 =
- 2026-04-27把下面各题变成除数是整数的小数除法.45÷1.8=÷18,1.89÷0.021=÷
- 2026-04-276÷0.25的商的最高位是位.商是.