问题
解答题
口算我最棒.
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答案
12×6=72; | 20×5=100; | 60÷3=20; | 50×7=350; | 103+97=200; |
480-280=200; | 40×5=200; | 175+235=410; | 75÷5=15; | 24×5=120. |
口算我最棒.
|
12×6=72; | 20×5=100; | 60÷3=20; | 50×7=350; | 103+97=200; |
480-280=200; | 40×5=200; | 175+235=410; | 75÷5=15; | 24×5=120. |