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- 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．
- 2026-04-27根据运算定律填空.3.8+4.25+6.2=3.8+□+4.252.3++□7.82+3.7-0.82=□+□-□3.6+□+□+□=□+4.4+
- 2026-04-2773×10.01= [ ]A．73×10+73×0.01B．73×10+73×0.1C．73×10+0.01
- 2026-04-2798×10.01= [ ]A．98×10+98×0.01B．98×10+98×0.1C．98×10+0.01
- 2026-04-27简便计算. (1)13.8﹣2.99 (2)3.1+25.78+6.9 (3)12.7﹣4.8﹣5.2 (5)15.25+4.72+4.75+5.28