姓名 ______________________日期 ____________得分 ____ / 12
加法运算律练习
加法运算律 · 1–12
用加法运算律填空。
1.(6 + 4) + 8 = 6 + ( + 8)
2.(9 + 1) + 8 = 9 + ( + 8)
3.(9 + 1) + 3 = 9 + ( + 3)
4.(4 + 6) + 2 = 4 + ( + 2)
5.(1 + 9) + 1 = 1 + ( + 1)
6.(7 + 3) + 5 = 7 + ( + 5)
7.(3 + 7) + 8 = 3 + ( + 8)
8.(9 + 1) + 2 = 9 + ( + 2)
9.(8 + 2) + 7 = 8 + ( + 7)
10.(3 + 7) + 6 = 3 + ( + 6)
11.(4 + 6) + 1 = 4 + ( + 1)
12.(6 + 4) + 2 = 6 + ( + 2)
mathsheetstudio.commathsheetstudio.commathsheetstudio.commathsheetstudio.commathsheetstudio.commathsheetstudio.commathsheetstudio.commathsheetstudio.com