自然數(shù),奇數(shù),偶數(shù),質(zhì)數(shù),合數(shù)的概念、偶數(shù)合數(shù)質(zhì)數(shù)奇數(shù)概念、自然數(shù)不是奇數(shù)就是偶數(shù),不是質(zhì)數(shù)就是合數(shù)、自然數(shù)中不是奇數(shù)就是偶數(shù)不是質(zhì)數(shù)就是合數(shù)、奇數(shù)和偶數(shù)是自然數(shù)嗎、自然數(shù)質(zhì)數(shù)合數(shù)奇數(shù)偶數(shù)的概念、自然數(shù)偶數(shù)奇數(shù)質(zhì)數(shù)合數(shù)、合數(shù)偶數(shù)奇數(shù)質(zhì)數(shù)的概念、合數(shù)質(zhì)數(shù)偶數(shù)奇數(shù)的概念、偶數(shù)奇數(shù)質(zhì)數(shù)合數(shù)的概念、偶數(shù)質(zhì)數(shù)合數(shù)奇數(shù)的概念、奇數(shù)合數(shù)質(zhì)數(shù)偶數(shù)的概念、奇數(shù)偶數(shù)質(zhì)數(shù)合數(shù)的概念、奇數(shù)質(zhì)數(shù)偶數(shù)合數(shù)的概念、質(zhì)數(shù)合數(shù)奇數(shù)偶數(shù)的概念、質(zhì)數(shù)奇數(shù)合數(shù)偶數(shù)的概念、自然數(shù)不是奇數(shù)就是偶數(shù)不是質(zhì)數(shù)就是合數(shù)、在1~20中既是合數(shù),又是奇數(shù)的數(shù),有幾個?、自然數(shù)不是質(zhì)數(shù)就是合數(shù)、在1～20的自然數(shù)中,是奇數(shù)但不是質(zhì)數(shù)的數(shù)有、10以內(nèi)的非零自然數(shù)中,()是偶數(shù),但不是合數(shù)、質(zhì)數(shù)和合數(shù)都是自然數(shù)嗎、自然數(shù),奇數(shù),偶數(shù),合數(shù)區(qū)別、自然數(shù),整數(shù),質(zhì)數(shù),合數(shù)、10以內(nèi)自然數(shù)中既是奇數(shù)又是合數(shù)的數(shù)是什么、在自然數(shù)1~15中,是偶數(shù)又是質(zhì)數(shù)的有、因數(shù),倍數(shù),質(zhì)數(shù),合數(shù),奇數(shù),偶數(shù)的概念、自然數(shù) 奇數(shù),偶數(shù),質(zhì)數(shù),合數(shù)之間的關(guān)系、自然數(shù)2是質(zhì)數(shù)還是合數(shù)、在1~20中,既是合數(shù)又是奇數(shù)的數(shù)有幾個?、在10~20的自然數(shù)中既是奇數(shù)又是合數(shù)的是、什么是質(zhì)數(shù),合數(shù),偶數(shù),奇數(shù),自然數(shù),整數(shù)、在1～20的自然數(shù)中既是奇數(shù)又是合數(shù)的有、自然數(shù)中不是質(zhì)數(shù)就是合數(shù)、自然數(shù) 質(zhì)數(shù) 合數(shù)、自然數(shù),質(zhì)數(shù),合數(shù)、自然數(shù)中什么的數(shù)叫做偶數(shù)什么的數(shù)叫做奇數(shù)、20以內(nèi)不是偶數(shù)的合數(shù)有不是奇數(shù)的質(zhì)數(shù)有、質(zhì)數(shù)合數(shù)奇數(shù)偶數(shù)怎么區(qū)分、1～10的自然數(shù)中既是奇數(shù)又是合數(shù)的有、是奇數(shù)但不是質(zhì)數(shù)的數(shù)、質(zhì)數(shù)和合數(shù)還有奇數(shù)和偶數(shù)、既是奇數(shù)也是合數(shù)的數(shù)是、質(zhì)數(shù)合數(shù)奇數(shù)偶數(shù)的概念區(qū)別、偶數(shù)奇數(shù)質(zhì)數(shù)合數(shù)有哪些、奇數(shù)合數(shù)質(zhì)數(shù)偶數(shù)有哪些、奇數(shù)偶數(shù)合數(shù)質(zhì)數(shù)有哪些、奇數(shù)偶數(shù)質(zhì)數(shù)合數(shù)有哪些、質(zhì)數(shù)合數(shù)奇數(shù)偶數(shù)有哪些、是奇數(shù)不是質(zhì)數(shù)的數(shù)有哪些、在自然數(shù)1—20中,質(zhì)數(shù)有( ),合數(shù)有( )、