在1~17中,质数有2,3,5,7,11,13,172,3,5,7,11,13,17;合数有4,6,8,9,12,14,15,164,6,8,9,12,14,15,16;偶数有2,4,6,8,10,12,14,162,4,6,8,10,12,14,16;奇数有1,3,5,7,9,11,13,15,171,3,5,7,9,11,13,15,17.
【考点】合数与质数的初步认识;奇数与偶数的初步认识.
【答案】2,3,5,7,11,13,17;4,6,8,9,12,14,15,16;2,4,6,8,10,12,14,16;1,3,5,7,9,11,13,15,17
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发布:2024/5/27 14:0:0组卷:23引用:9难度:0.9