北师大版六年级数学简便计算练习题

一、口算。

10－2.65＝              0÷3.8＝            24÷0.467.5＋0.25＝     

6＋14.4＝              9×0.08＝                 0.77＋0.33＝                 

二、用简便方法计算下面各题。

1125－997               12－(1+2)                  4+3.2＋5+6.8    

998+1246                  400÷125÷8                       25×（37×8）   

(－)×12                  1×2×               34×(2＋)       

125×8.8                 4.35＋4.25＋3.65＋3.75               3.4×99＋3.4   

(＋+)×72          17－3－4                 ÷2＋×         

0.125×0.25×32             22.3－2.45－5.3－4.55         17.15－8.47－1.53           

4.25－3－(2－1)            0.125×+×8.25+12.5%         ++

43×＋57.125×－0.5            ×(－÷)            5--

2.42÷+4.58×－4÷3           ×6.6＋2.5×            －－       

4.6+++5.4                 2.8++7.2+                  －(+)

－+              +－++           0.75+++0.375       

48.3--               ×4.25+÷6            0.625×0.5 + + ×62.5%  

+(-1.8)          2.5×(+++)             22×+25×75%-7×0.75     

0.25×63.5－×             ×2.5-×                 1125-996

+3.125++            (111+999) ÷[56×(-)]               299×101

49.5×-(50-)×0.6         ×+÷+           45×(+－0.6)      

×(－5.375)              3.5×+1.25×+3.8÷               71×99           

3755+2996                  187.7×11－187.7                      72×156-56×72

0.125×+×8.25+12.5%              2.5×0.4×2                2×6.6+2.5×6              

446+295                      709×99+709                          8439+1001  

14. 0.25×48                   75.3×99+75.3                   4.6×3.7+54×0.37  

563×999                   19.82―6.57―3.43                  25×32×125  

11―6―1                 4.6+3+6+5.4                     4+2.25+5+7      

9.63÷2.5÷4                   6÷0.25                        13.09－8.12－4.88          

3－－                   ×+×                    ×+÷    

18×（+）               ×7+×5                  （－）×（24－）

（×+）÷               ÷[（+）×]               ×7+×5    

（×+）÷              (32×＋17)÷          （21×＋×21）×    

（99＋）÷9                      ×÷                （＋）×30       

＋3÷                      4－－                    ×58＋×41＋  

××－                  ×＋÷               ×153 – 0.6×53          

10 - - +           2100÷20    888+999            ×＋×＋