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- 2026-04-274×2.6+3.6×2.6==10×5.2=52 [ ]
- 2026-04-27计算7.88×2.5+2.5×2.12可以运用律进行简便计算.
- 2026-04-27计算. (1)126×17.5-26×17.5 (2)12.5×2.5×8×0.4 (3) (4)
- 2026-04-27用简便方法计算. (1)0.125×2.5×32 (2) (3) (4)5.8-1.38+13.2-3.62
- 2026-04-2783+2.98的简便算法是 [ ]A.5.83 +3 +0.02 B.5.83 +3 -0.02 C.2.98+5.83
- 2026-04-27用简便方法计算:54÷8÷1.25
- 2026-04-27下面各题可以运用乘法分配律简算的是 [ ]A.×0.4B. 2.6×3.7+2.6×6.3C. 0.79×2+7.9×98
- 2026-04-27计算1.25×32×2.5的简便方法是 [ ]A.32×l.25×2.5 B.1.25×8 +2.5×4 C.