简便计算:12.5x2.5x6
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简便计算:12.5x2.5x6简便计算:12.5x2.5x6简便计算:12.5x2.5x612.5x2.5x16应该是乘以16吧=12.5×2.5×8×2=(12.5×8)×(2.5×2)=100×5
简便计算:12.5x2.5x6
简便计算:12.5x2.5x6
简便计算:12.5x2.5x6
12.5x2.5x16 应该是乘以16吧
=12.5×2.5×8×2
=(12.5×8)×(2.5×2)
=100×5
=500
12.5x2.5x6
=2.5x5x2.5x6
=2.5²x30
=6.25x30
=62.5x3
=187.5
100/8 * 10/4 * 6=187.5
简便计算:12.5x2.5x6
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