4 + 4 = 9 - 2 = 3 + 1 =
4 - 1 = 5 + 3 = 8 - 6 =
8 - 4 = 1 + 6 = 4 - 2 =
6 - 3 = 3 + 4 = 1 + 5 =
5 - 1 = 7 - 1 = 5 + 4 =
4 - 4 = 4 - 2 = 1 + 4 =
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,小学一年级口算测试练习题(9)
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