问题
解答题
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答案
520+480=1000, | 670-500=170, | 65万+47万=112万, | 500-240=260, |
437+163=600, | 820-560=260, | 34×200=6800, | 25×300=7500, |
3600÷300=12, | 8400÷600=14, | 1900+5400=7300, | 2300-800=1500, |
27×4×5=540, | 35×5×2=350, | 25×24=600, | 360÷8÷5=9. |