简便方法计算.0.94乘以2.5减0.45 = = =
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简便方法计算.0.94乘以2.5减0.45===简便方法计算.0.94乘以2.5减0.45===简便方法计算.0.94乘以2.5减0.45===0.94*2.5-0.45=（1-0.06）*2.5-0
简便方法计算.0.94乘以2.5减0.45 = = =
简便方法计算.0.94乘以2.5减0.45 = = =
简便方法计算.0.94乘以2.5减0.45 = = =
0.94*2.5-0.45=（1-0.06）*2.5-0.45=1*2.5-0.06*2.5-0.45=2.5-0.15-0.45=2.5-0.6=1.9
简便方法计算.0.94乘以2.5减0.45 = =
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简便方法计算.0.94乘以2.5减0.45 = = =
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