科目:小學數學 來源: 題型:071
用多種方法計算下面各題.
(1)12 ×4 |
12 ×4 |
12 ×4 |
12 ×4 |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
(2)18 ×2 |
18 ×2 |
18 ×2 |
18 ×2 |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
=______ |
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科目:小學數學 來源:數學教研室 題型:072
用多種方法計算下面各題.
(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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