题目内容
听音,补全下列算式,并写出答案。
1. 10 + ___________ = ___________
2. ___________ + 25 = ___________
3. 27 + ___________ = ___________
4. ___________ + 11 = ___________
2. ___________ + 25 = ___________
3. 27 + ___________ = ___________
4. ___________ + 11 = ___________
1. 10, 20 2. 20, 45 3. 31, 58 4. 22, 33
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