一年级数学下册第6章100以内的加法和减法(一)6.3.4用数学(一)课件新人教版.ppt

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43,63,72,56,49,42,3个同学一起折小星星,,每人折了6个。,他们一共折了多少个小星星?,你能用什么方法解决呢?试一试。,1,6,2,12,3,18,我用加法解答。,我用画箭头的方法解答。,我列表解答。,12,18,18,请你检查一下 解答过程。,1,6,2,12,3,18,几种不同的方法你最 喜欢哪种?为什么?,归纳总结:,解决“同数连加”的问题的方法:可以用连加解决问题,也可以用列表的方法解决问题。,爸爸买了3袋苹果,每袋8个,一共买了多少个苹果?,88824(个),这节课我学会了什么?快来说一说吧!,作业,请完成教材第79页练习十八 第一题、第二题。,xx小学 x年级x班,xxx,

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