三年级计算过关

                            班级：          姓名：          

1、口算。

43＋6=           57＋30=           46＋53=           56＋44=

97－45=          76－33=          42－26=           70－35= 

30×6=            80×4=            2×50=             7×70= 

    400×5=           900×9=          500×5=           7000×2= 

     27÷3=             54÷6=           25÷4=              50÷7=   

72÷9=            34÷5=            61÷8=              42÷5=

2、估算。

381+401≈        435－228≈       628－246≈        957+611≈ 

237－51≈        427+134≈        359+497≈         525－253≈

31×7≈       69×8≈       57×5≈       47×4≈      132×6≈      397×7≈      407×4≈      350×3≈ 

3、脱式计算。（递等式计算）

370+（481－76）            72÷8+81               148+6×5  

4、列竖式计算。（带“★”的要验算）

307+583=                    728+586=                 ★442＋248=         

   978+516=                    543+547=                    460+472=       

1000-375=                     925-508=                    756-248=      

602-107=                       856-248=                  ★902-475=          

423×2=                        637×4=                      375×6=            

 605×8=                       32×9=                      476×7=     

152×3=                       870×50=