5 + 5 = 5 + 2 = 2 + 8 =
7 + 1 = 9 + 1 = 1 + 6 =
7 + 3 = 7 + 2 = 2 + 5 =
8 + 2 = 2 + 8 = 8 + 1 =
1 + 2 = 3 + 6 = 7 + 3 =
6 + 3 = 7 + 2 = 3 + 2 =
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,小学一年级口算测试练习题(3)
小学一年级数学辅导 更新
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