科目:小学数学 来源: 题型:071
用多种方法计算下面各题.
(1)12 ×4 |
12 ×4 |
12 ×4 |
12 ×4 |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
(2)18 ×2 |
18 ×2 |
18 ×2 |
18 ×2 |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
查看答案和解析>>
科目:小学数学 来源:数学教研室 题型:072
用多种方法计算下面各题.
(1)12 ×4 |
12 ×4 |
12 ×4 |
12 ×4 |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
(2)18 ×2 |
18 ×2 |
18 ×2 |
18 ×2 |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
查看答案和解析>>
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