第五单元跟踪检测卷 (1)
四年级上册第五单元跟踪检测卷一、用心思考,正确填写。(每空1分,共21分)1.计算736÷32时,可以把32看作( )来试商,商的最高位在( )位上,商是( )。2.300÷25=(300×4)÷(25×4)这是根据( )。3.估算243÷38时,可以把243看作( ),把38看作( ),结果大约是( )。4.63÷57要使商是一位数,里最大能填( );要使商是两位数,里最小能填( )。5.在除法算式90÷30=3中,如果除数除以6,要使商仍是3,被除数应( )。6.490连续减去70,减( )次得0。7.括号里最大能填几?80×( )<68061×...
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