【题目】快乐加减法。
1. one + two =________ 2. four + five =________
3. nine – two =________ 4. three + seven =________
5. ten – five =________ 6. six – four =________
【答案】1.three 2.nine 3.seven 4.ten 5.five 6.two
【解析】
略
【题目】快乐加减法。
1. one + two =________ 2. four + five =________
3. nine – two =________ 4. three + seven =________
5. ten – five =________ 6. six – four =________
【答案】1.three 2.nine 3.seven 4.ten 5.five 6.two
【解析】
略
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