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很多同学在做题时,只要看到题目中有“少”字,就立即用减法计算,其实,这种做法是不正确的。[病例1]苹果有18个,苹果比梨少6个,梨有多少个?[病症]18-6=12(个)。[诊断]这道题里告诉我们苹果比梨少6个,反过来说就是梨比苹果多6个,那么梨的个数应该是苹果的个数加6。
有“少”字就用减法计算吗
【摘 要】
：
很多同学在做题时,只要看到题目中有“少”字,就立即用减法计算,其实,这种做法是不正确的。[病例1]苹果有18个,苹果比梨少6个,梨有多少个?[病症]18-6=12(个)。[诊断]这道题里
【机 构】
：
安徽省庐江县城北小学
【出 处】
：
数学小灵通:小学1-2年级版
【发表日期】
：
2019年1期
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