预备班(小升初)暑期数学作业

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1、新预备班暑期数学练习班级：姓名：；第一天：计算：（能简便的用简便运算）①3.14×9.9+0.314②4.05×101③9.1÷0.125④（1-0.8）×（4-3.68）÷0.01⑤[0.15+（3.74-1.8）÷0.4]×20⑥（2.5-1÷0.8）×0.8-0.8forthequalityofreviewsandreview.Article26threview(a)theCCRAcompliance,whethercopiesofchecks;(B)whetherdoubleinvestigati

2、on;(C)submissionofprogramcompliance,investigationorexaminationofwhetherviewsareclear;(D)theborrower,guarantorloans15第二天：计算：（能简便的用简便运算）①0.35×[1÷（2.7-2.66）+0.65]②2.5×7.83×0.4③54÷（3.94+6.86）×0.8④0.56×40.5+0.44×59.5⑤6.27×1.5-6.27⑥6.7＋19.34＋3.3＋0.66forthequali

3、tyofreviewsandreview.Article26threview(a)theCCRAcompliance,whethercopiesofchecks;(B)whetherdoubleinvestigation;(C)submissionofprogramcompliance,investigationorexaminationofwhetherviewsareclear;(D)theborrower,guarantorloans15第三天：一、直接写出计算结果：5.64＋0.4＝0.01×0.

4、1＝10－10÷2.5＝；1－＝8.7÷100＝；0.31×（13.04－3.04）=3998÷41≈（估算）17.86×4.31≈（得数用四舍五入法保留两位小数）二、计算：（能简便的用简便运算）①9.9×1.02②38.4÷0.16－6.8×35＋7.8③6.4×（125×0.125）④[5.7÷（0.09＋0.1）＋2.4]÷0.54forthequalityofreviewsandreview.Article26threview(a)theCCRAcompliance,whethercopiesof

5、checks;(B)whetherdoubleinvestigation;(C)submissionofprogramcompliance,investigationorexaminationofwhetherviewsareclear;(D)theborrower,guarantorloans15第四天：一、计算：（能简便的用简便运算）①28.8÷（6－0.24×5）②24.8×7.6＋24.8×3.4－24.8③34.23－3.65－6.45＋16.77④[30－（7.2＋0.78÷0.13）]×10

6、.01⑤（18.5×3.6+3.6×2.5）÷0.18⑥81000÷(27×78+27×22)forthequalityofreviewsandreview.Article26threview(a)theCCRAcompliance,whethercopiesofchecks;(B)whetherdoubleinvestigation;(C)submissionofprogramcompliance,investigationorexaminationofwhetherviewsareclear;(D)t

7、heborrower,guarantorloans15第五天：一、直接写出得数：101.4－10.4=1.6×0.0125=10÷0.2÷0.5=；0.65×2=9.02÷0.01=0.4×0.22×0.25=；2.4×0.25=4.7-0.47=（3.639－1）÷1.3=；二、计算：（能简便的要用简便方法法计算）①（2.75-0.75×2.4）÷0.1②2.6×1.87＋1.87×6.4－1.87③12.5×（2.4+4）×2.5④（1.8－1.8×0.8）÷（3.8－2.8）forthequalit

8、yofreviewsandreview.Article26threview(a)theCCRAcompliance,whethercopiesofchecks;(B)whetherdoubleinvestigation;(C)submissionofprogramcompliance,investigationorexaminationofwhetherviewsareclear;(D)theborrower,guaranto