2019年小學(xué)六年級(jí)數(shù)學(xué)因數(shù)和倍數(shù)練習(xí)題

Word文檔下載后可自行編輯1/12019年小學(xué)六年級(jí)數(shù)學(xué)因數(shù)和倍數(shù)練習(xí)題font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;text-decoration:underline;font-family:宋體;font-family:宋體;font-family:宋體;font-family:Arial;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-weight:bold;font-family:宋體;font-family:宋體;z-index:1;left:0px;z-index:1;left:0px;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:宋體;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:宋體;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:‘TimesNewRoman‘;font-family:‘TimesNewRoman‘;font-family:宋體;font-family:‘TimesNewRoman‘;font-family:宋體;font-family:‘TimesNewRoman‘;font-family:‘TimesNewRoman‘;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:Verdana;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:Verdana;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;z-index:1;left:0px;font-family:宋體;z-index:1;left:0px;z-index:1;left:0px;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;font-family:宋體;＞＜/span＞＜br＞＜br＞＜br＞＜span＞＜strong＞一、直接寫(xiě)出得數(shù)（24分）＜/strong＞＜/span＞＜br＞＜br＞＜span＞0.25×40＝      12.4－2.8＝       3.6＋2.8＝          125×8.8＝＜/span＞＜br＞＜br＞＜span＞48÷0.8＝       0.56＋0.65＝      56×0.01＝          17.3×8＋17.3×2＝＜/span＞＜br＞＜br＞＜span＞9.2－0.8＝      0.07×100＝       445÷1000＝         3.5＋0.5×10＝＜/span＞＜br＞＜br＞＜span＞3.3÷0.3＝      6.4－2.9＝        9.2＋1.8＝          3.4×101－3.4＝＜/span＞＜br＞＜br＞＜span＞191－59＝       75×0.6＝         6＋4÷10＝          5×5÷5×5＝＜/span＞＜br＞＜br＞＜span＞279＋48＝       24×5＝           6.8×10÷100＝      0.9×7＋0.1×7＝＜/span＞＜br＞＜br＞＜span＞＜strong＞二、填上空題。（30分）＜/strong＞＜/span＞＜br＞＜br＞＜span＞1、因?yàn)?×6=18，所以（      ）是（      ）的因數(shù)，18是6的（      ）。＜/span＞＜br＞＜br＞＜span＞2、在＜/span＞＜span＞自然＜/span＞＜span＞數(shù)1～20中，質(zhì)數(shù)分別有（                             ＜/span＞＜span＞）＜/span＞＜span＞。＜/span＞＜br＞＜br＞＜span＞3、個(gè)位是（                   ）的＜/span＞＜span＞自然＜/span＞＜span＞數(shù)，叫做奇數(shù)。兩位數(shù)中，最小的奇數(shù)是（        ），最大的偶數(shù)是（         ）。＜/span＞＜br＞＜br＞＜span＞4、同時(shí)是2，5的倍數(shù)的最大兩位數(shù)是（            ）。＜/span＞＜br＞＜br＞＜span＞5、一個(gè)數(shù)既是9的因數(shù)、又是9的倍數(shù)，這個(gè)數(shù)可能是（          ）。＜/span＞＜br＞＜br＞＜span＞6、有一個(gè)兩位數(shù)5□，如果它是5的倍數(shù)，□里填（       ）。如果它是3的倍數(shù)，□里可以填（       ），如果它同時(shí)是2、5的倍數(shù)，□里可以填（        ）。＜/span＞＜br＞＜br＞＜span＞7、三個(gè)連續(xù)的偶數(shù)和是96，這三個(gè)數(shù)分別是（     ）、（     ）、（      ）。8、 226至少增加（     ）就是3的倍數(shù)，至少減少（       ）就是5的倍數(shù)。＜/span＞＜br＞＜br＞＜span＞9、兩個(gè)連續(xù)的質(zhì)數(shù)是（    ）和（    ）；兩個(gè)連續(xù)的合數(shù)是（    ）和（   ＜/span＞＜span＞）＜/span＞＜br＞＜br＞＜span＞10、用質(zhì)數(shù)填一填。22=（      ）+（      ）=（     ）+（      ）＜/span＞＜br＞＜br＞＜span＞11、100以內(nèi)最大的質(zhì)數(shù)與最小的合數(shù)的和是（ ），差是（ ）。＜/span＞＜br＞＜br＞＜span＞12、一個(gè)四位數(shù)，個(gè)位上的數(shù)是最小的質(zhì)數(shù)，十位上是最小的＜/span＞＜span＞自然＜/span＞＜span＞數(shù)，百位上是最大的一位數(shù)，最高位上是最小的合數(shù)，這個(gè)數(shù)是（        ）。＜/span＞＜br＞＜br＞＜span＞＜strong＞三、是非題。(5分)＜/strong＞＜/span＞＜br＞＜br＞＜span＞1、＜/span＞＜span＞自然＜/span＞＜span＞數(shù)按是否是2的倍數(shù)，分成了奇數(shù)和偶數(shù)。（    ）＜/span＞＜br＞＜br＞＜span＞2、＜/span＞＜span＞自然＜/span＞＜span＞數(shù)按因數(shù)個(gè)數(shù)的不同，分成了質(zhì)數(shù)和合數(shù)。（    ）＜/span＞＜br＞＜br＞＜span＞3、13，51，47，97這幾個(gè)數(shù)都是質(zhì)數(shù)。（    ）＜/span＞＜br＞＜br＞＜span＞4、在10、15、20中，10是20的因數(shù)，15是10的倍數(shù)。（    ）＜/span＞＜br＞＜br＞＜span＞5、幾個(gè)質(zhì)數(shù)的積一定是偶數(shù)。（    ）＜/span＞＜br＞＜br＞＜span＞＜strong＞四、選擇題。（12分）＜/strong＞＜/span＞＜br＞＜br＞＜span＞1、判定下面的結(jié)果是偶數(shù)還是奇數(shù)。＜/span＞＜br＞＜br＞＜span＞A、2+5的結(jié)果是（    ）       B、如果A是＜/span＞＜span＞自然＜/span＞＜span＞數(shù)（A≠0），2A表示（     ）＜/span＞＜br＞＜br＞＜span＞C、2×3的結(jié)果是（     ）       D、一個(gè)數(shù)只有1和本身兩個(gè)因數(shù)，它是（     ）＜/span＞＜br＞＜br＞＜span＞2、一個(gè)邊長(zhǎng)是質(zhì)數(shù)的正方形，它的面積一定是（      ）A. 合數(shù)         B. 質(zhì)數(shù)         ＜/span＞＜br＞＜br＞＜span＞2、判定下面的結(jié)果是偶數(shù)還是奇數(shù)。＜/span＞＜br＞＜br＞＜span＞A、785＋547的和是（     ）       B、675+54－465的結(jié)果是（     ）＜/span＞＜br＞＜br＞＜span＞C、75×71的積是（     ）         D、奇數(shù)×奇數(shù)的積是（     ）。＜/span＞＜br＞＜br＞＜span＞3、同時(shí)是2、3、5的倍數(shù)的數(shù)是（        ）A．奇數(shù)          B．偶數(shù) ＜/span＞＜br＞＜br＞＜span＞4、36的因數(shù)共有（       ）個(gè)。 A. 6個(gè)        B. 9個(gè)        C. 10個(gè) ＜/span＞＜br＞＜br＞＜span＞5、如果a表示＜/span＞＜span＞自然＜/span＞＜span＞數(shù)，那么下面一定可以表示偶數(shù)的是（  &