练习课(1-2课时).ppt
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1、,练习课(第1-2课时),R五年级下册,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,知识点1:2、5的倍数特征,1.按要求填空。,(1) 两个数位上的数一样,并且是5的倍数。 (2)35 既是2的倍数,又是5的倍数。 (3) 既是2的倍数,又是5的倍数的最小的三位数。,5,5,0,0,0,1,2.下面哪些数是2的倍数?哪些数是5的倍数?哪些数既是2的倍数,也是5的倍数?,90 38 45 103 360 172 75,2的倍
2、数:90,38,360,172;5的倍数:90,45,360,75;同时是2、5的倍数:90,360。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,知识点2:奇数和偶数的意义,1.下列数中,哪些是奇数?哪些是偶数?,33 98 355 0 123 881 8089 1000 988 565 3678 677,奇数有:33、355、123、881、8089、565、677 偶数有:98、0、1000、988、3678,2.将下
3、面的球衣号码分类,并填在各自的框里。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,知识点3:3的倍数的特征,1.圈出3的倍数。,92 75 36 206 65 3051 779 99999 111 49 165 5988 655 131 2222 7203,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状
4、元成才路,状元成才路,状元成才路,状元成才路,2.将下面的数填在合适的图中。,75、84、125、35、165、630、3474、99、210。,既是3的倍数,又是5的倍数,3的倍数,5的倍数,84、3474、99,75、165、630、210,125、35,巩固提高,1.妈妈在花店买了一些马蹄莲和郁金香。,找您13元。,给您100元。,你能很快地帮妈妈判断找回的钱对不对吗?,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,2.
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