十几减5、4、3、2练习题
(1) 13 - 4 = 11 - 5 = 12 - 3 =
(2)4 + = 13 5 + = 11 3 + = 12
13 - 4 = 11 - 5 = 12 - 3 =
= (支) = (个)
12 - 3 = 13 - 7 + 5 = 3 + 9 + 2 = 15 - 8 + 3 =
12 - 5 = 8 + 3 - 5 = 12 - 3 - 4 = 17 - 5 + 4 =
12 - 4 = 14 - 7 + 8 = 6 + 7 - 4 = 16 - 3 - 8 =
13 - 7 = 13 - 6 = 13 - 5 = 13 - 5 + 6 =
= (个)
= ( )
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