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- 2026-04-27用简便方法计算. (1)32.7×0.85+67.3×0.85 (2)0.17×2.5×0.4
- 2026-04-27125+0.77+0.875=0.77+只运用了加法交换律. [ ]
- 2026-04-27+0.64=□○
- 2026-04-275+9.8=□+10-□
- 2026-04-2756+5.92+6.44+3.08=+只运用了加法的结合律. [ ]
- 2026-04-27计算下面各题.能简算的要简算. (1)12.5×16×0.5 (3)4.8÷0.16÷0.3 (3)0.57×8.3+0.57×1.7 (4)48.7-160.6÷5.84
- 2026-04-27计算:15.38-3.99+6.72-9.01=.
- 2026-04-27计算下面各题.能简算的要简算. (1)9.8+99.8+999.8+0.6 (2) (3)1999+999×999 (4)