列式计算:67-52=15
竖式计算
解:67-52等于( 15 ) ∵已知需求出67-52等于多少 ∴67 - 52 = (70 - 3)- (50 + 2) = 70 - 3 - 50 - 2 = (70 - 50)- (3 + 2) = 20 - 5 = 15 答:67-52等于15