姓名 ______________________日期 ____________得分 ____ / 12
乘法运算律练习
乘法运算律 · 1–12
写出算式体现的运算律或性质。
4.(12 × 6) × 7 = 12 × (6 × 7)
7.(5 × 9) × 4 = 5 × (9 × 4)
8.(12 × 10) × 8 = 12 × (10 × 8)
9.(2 × 10) × 8 = 2 × (10 × 8)
10.(8 × 2) × 8 = 8 × (2 × 8)
12.(12 × 6) × 8 = 12 × (6 × 8)
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