求6.15*9.4-42的简算
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求6.15*9.4-42的简算
求6.15*9.4-42的简算
求6.15*9.4-42的简算
6.15×9.4-42 =6.15×(10-0.6)-42 =61.5-3.69-42 =61.5-42-3.69 =19.5-3.69 =15.81
求6.15*9.4-42的简算
求6.15*9.4-42的简算
求6.15*9.4-42的简算
6.15×9.4-42 =6.15×(10-0.6)-42 =61.5-3.69-42 =61.5-42-3.69 =19.5-3.69 =15.81