题目内容
|
(1)3 ＋1=□ |
(2)5 －3=□ |
(3)4 －3=□ |
(4)3 ＋2=□ |
|
(5)4 －1=□ |
(6)2 ＋3=□ |
(7)1 ＋3=□ |
(8)5 －2=□ |
答案：4;2;1;5;3;5;4;3
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