问题
解答题
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答案
20×7=140; | 60×3=180; | 450÷9=50; | 87+9=96; |
60÷3=20; | 420÷7=60; | 35×2=70; | 320÷2=160; |
500×3=1500; | 230×2=460; | 900÷2=450; | 75-8=67. |
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20×7=140; | 60×3=180; | 450÷9=50; | 87+9=96; |
60÷3=20; | 420÷7=60; | 35×2=70; | 320÷2=160; |
500×3=1500; | 230×2=460; | 900÷2=450; | 75-8=67. |