四年级上册数学一课一练-4.1买文具3∣北师大版（含解析）

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1、四年级上册数学一课一练-4.1买文具∣北师大版一、单选题1.750÷[（43－18）×3]=（  ）A. 20                                        B. 15                                        C. 108                                        D. 102.120－100÷25×3=（  ）A. 20                                        B. 15 

2、                                       C. 108                                        D. 103.能简算的要简算10556÷26＋33×18=(  )A.                                        B. 1000                                       C.                                        D. 464.62.5－4

3、5÷18×2.5＝（  ）[来源:Z*xx*k.Com]A.                                       B. 56.25                                      C. 958                                      D. 245.2448÷[218－(127－11)]＝（  ）A.                                       B. 56.25                      

4、                C. 958                                      D. 246.17的3倍加上20的和，再乘15，积是（  ）A. 674                                      B. 1065                                      C. 574                                      D. 447.如果一辆出租车行驶15km可用1升汽油，1升汽油排出的废气为0

5、.8升，可污染3立方米空气，哈市有15万辆出租车，每天每辆车大约行驶300km，那么哈市空气受污染的容量是(  )立方米A. 48万                                  B. 620万                                  C. 800万                                  D. 900万8.学校买4个足球和5个篮球共用502元，如果要买4个足球和3个篮球，要用378元，每个篮球（  ）A. 124                

6、                        B. 26                                        C. 62                                        D. 609.小刚要读一本150页的科技书，他4天读了60页，照这样计算，其余的还需要      天读完．（  ）A. 15                                           B. 6                                      

7、     C. 5                                           D. 810.4300与1400的和，除以60的5倍，商是（  ）A. 12                                         B. 19                                         C. 10                                         D. 9二、填空题11.填空3000-912×47÷57=________1

8、2.31×[868÷(98－91)]=________13.270÷30×3＋64=________14.学校举行书画比赛，获得一等奖的有12人，获得二等奖的人数是一等奖的2倍．获得三等奖的比一、二等奖的总人数少10人，获得三等奖的有________？15.如果把340÷68＋25×4的运算顺序改为340除以68的商加上25的和，再乘4，算式是