三年级上口算竞赛题

班级:                   姓名:                    得分：             

一、口算，看谁算的对又快。                                             

66÷3=         70×8 =          300×7 =        40＋55÷5=          560÷8=

15×8=         408×5=         102×4=         720－120÷6=         18×4=

250×4=        3500÷5=        48÷2=          (750+250)÷5=        930÷3=

46÷2=         84÷4=          630÷9=         96÷3=               600÷6=

66÷3=         100÷5=         720÷8=         5×2+7=              42÷2=

9×2+8=        5+2×4=         5×5+4=         2×7+6=              888÷4=

8×8+8=        32×2=          480÷4=         75+5×5=             105×3=

17×3=         240÷6=         560÷7=         84÷2=               200÷4=

22×3=         23×4=          27+27×2=       8×125=              54＋36=

420÷7=        300÷5=         450÷9=         400－450÷5=         36÷3=

二、用竖式计算。

123×3=          248×2=           4×75=            225×4=          125×8=

307×8=           125×6=           216×4=           420×5=          508×7=

三、脱式计算。

15×6×8                     105×2×5                      32+28×9                   

=                          =                              =

=                          =                              =                            

36÷9×12                 （15+35）×6                     25×4－36

=                         =                              =

=                         =                              =

7000－8×125               8×（223+77）                  102×4×5

=                          =                             =

=                          =                             =

32+17×3

=

=