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- 2026-04-275×3.6+1.4×3.5的简便算法是( ).
- 2026-04-278×3.9+0.39+0.39的简便算式是 [ ]A.×3.9 B.4.8×3.9+0.39×2 C.4.8×3.9+0.1×3.9+0.1×3.9=×3.9
- 2026-04-27请你用简便方法计算0.1+0.2+0.3+0.4+0.5+0.6+0.7+0.8+0.9的值.
- 2026-04-275×9×0.8=9×.这是根据 [ ]A.乘法的交换律B.乘法的结合律C.乘法交换律和结合律
- 2026-04-27计算下面各题. (1)0.48×2.6+1.3×1.04 (2)12.5×6.78×8 (3)28.7+11.3×0.5 (4)6.4×101
- 2026-04-272×3. 7+3.7×5.8可以运用乘法交换律进行简算. [ ]
- 2026-04-2725×0.25×3.2= [ ]A. 1.25×4×0.25×8B. 1.25×0.8×0.25×4C.D.
- 2026-04-2725×8.08=1.25×( )=1.25×( )+1.25×( )=( )这是利用了( )律.