问题
解答题
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答案
17×3=51, | 1800-600=1200, | 26×7=182, | 180×40=7200, |
2600×3=7800, | 250×9=2250, | 39×5=195, | 120×50=6000, |
17×30=510, | 180×3=540, | 32×300=9600, | 25×60=1500. |
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17×3=51, | 1800-600=1200, | 26×7=182, | 180×40=7200, |
2600×3=7800, | 250×9=2250, | 39×5=195, | 120×50=6000, |
17×30=510, | 180×3=540, | 32×300=9600, | 25×60=1500. |