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56-47= | 10-0.27= | 5-2.5= | 6.3+0.7= | 6÷0.5= |
8.4÷4.2= | 2.5×4= | = | = | = |
= | 9÷10= | = | = | = |
= | = | = | = | = |
= | = | = | = | = |
= | = | = | = | = |
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科目: 來源: 題型:解答題
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