姓名 ______________________日期 ____________得分 ____ / 12
加减法算式组（数族）练习
加减法算式组（数族） · 1–12
用每组数写出一组相关的算式。
答案 — 加减法算式组（数族）练习
加减法算式组（数族）
1.30 + 80 = 11080 + 30 = 110110 − 30 = 80110 − 80 = 30
2.70 + 70 = 140140 − 70 = 70
3.80 + 30 = 11030 + 80 = 110110 − 80 = 30110 − 30 = 80
4.30 + 70 = 10070 + 30 = 100100 − 30 = 70100 − 70 = 30
5.40 + 70 = 11070 + 40 = 110110 − 40 = 70110 − 70 = 40
6.20 + 60 = 8060 + 20 = 8080 − 20 = 6080 − 60 = 20
7.70 + 80 = 15080 + 70 = 150150 − 70 = 80150 − 80 = 70
8.30 + 10 = 4010 + 30 = 4040 − 30 = 1040 − 10 = 30
9.20 + 10 = 3010 + 20 = 3030 − 20 = 1030 − 10 = 20
10.30 + 20 = 5020 + 30 = 5050 − 30 = 2050 − 20 = 30
11.70 + 40 = 11040 + 70 = 110110 − 70 = 40110 − 40 = 70
12.80 + 60 = 14060 + 80 = 140140 − 80 = 60140 − 60 = 80
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