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小学四年级上册数学第三五单元期末复习卷 班级 座号 成绩 一我来算(28分)1直接写得数(10分)230×400×529420÷70404×72≈173÷17≈25×20300÷5023×400298×19≈268÷91≈2列数式计算(打号的要验算)(16分)239×383600×60507×1296
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小学四年级数学上册第三单元——混合运算盐城市第一小学 江苏省特级教师 嵇宪长知识梳理难点剖析例1 算式407×□当添上小括号成(407)×□得到的结果是235那么原来算式的结果是多少思维流程:(407)×□=235→□=235÷(407)→□=5→代入原算式→407×5=75解: 235÷(407) =235÷47=5 407×5 =4035=75
一年级数学上册第三四单元测试C一在方框里填上适当的数1 5 2 3 2 4 1 1 12在1的后面3的前面这个数是( )与4相邻的数是( )和( )二我会从大到小排一排14503( )> ( )> ( )> ( )>( )三按要求涂色(左) (
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