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5 以内加减法 随机排列 黑海豚设计（QQ:6932391）
5以内加减法，链接后加“?x=300”可调整加大计算数值，最大300。点此切换答案显示，方便截图打印。
注：改变浏览窗口大小，可调整每行题数，本页默认会显示100道，刷新页面随机重排。黑海豚设计（交流QQ:6932391)
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2 + 1 = 3
4 + 1 = 5
4 - 3 = 1
3 + 2 = 5
1 + 3 = 4
4 - 2 = 2
3 + 2 = 5
3 - 2 = 1
1 + 4 = 5
5 - 2 = 3
2 + 1 = 3
5 - 4 = 1
3 - 1 = 2
1 + 4 = 5
3 + 1 = 4
1 + 1 = 2
3 - 1 = 2
5 - 3 = 2
2 - 1 = 1
5 - 3 = 2
2 + 2 = 4
2 - 1 = 1
4 - 1 = 3
2 + 3 = 5
1 + 1 = 2
1 + 2 = 3
5 - 1 = 4
5 - 1 = 4
5 - 4 = 1
4 - 3 = 1
2 + 2 = 4
3 - 2 = 1
4 + 1 = 5
4 - 1 = 3
5 - 2 = 3
4 - 2 = 2
1 + 3 = 4
1 + 2 = 3
3 + 1 = 4