问题
解答题
口算.
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答案
37+73=110, | 20×50=1000, | 123÷3=41, | 4×50=200, | 80-28=52, | 60×13=780, | ||||||||||||||
6+0.4=6.4, | 6-0.4=5.6, | 3.5+2.8=6.3, |
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口算.
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37+73=110, | 20×50=1000, | 123÷3=41, | 4×50=200, | 80-28=52, | 60×13=780, | ||||||||||||||
6+0.4=6.4, | 6-0.4=5.6, | 3.5+2.8=6.3, |
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