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凑十法习题

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凑十法练习题

1. 拆小数,凑大数

9 + 9 = 9 + 8 = 9 + 7 = 9 + 6 = 9 + 5 = 9 + 4 = 9 + 3 = 9 + 2 = 8 + 7 = 8 + 6 = 8 + 5 = 8 + 4 = 8 + 3 = 7 + 7 = 7 + 6 = 7 + 5 = 6 + 6 = 6 + 5 = 8 + 8 = 7 + 4 =

2. 拆大数,凑小数

9 + 9 = 8 + 9 = 7 + 9 = 6 + 9 = 5 + 9 = 4 + 9 = 3 + 9 = 2 + 9 = 8 + 8 = 7 + 8 = 6 + 8 = 5 + 8 = 4 + 8 = 3 + 8 = 7 + 7 = 6 + 7 = 5 + 7 = 4 + 7 = 6 + 6 = 5 + 6 =

凑十法习题

凑十法练习题1.拆小数,凑大数9+9=9+8=9+7=9+6=9+5=9+4=
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