小数的巧算 知识点题库

232.14+64.28×0.5378×0.25+0.5378×64.28×0.75﹣8×64.28×0.125×0.5378= .

计算:2.016×390+20.16×41+201.6×2= .

简便计算

4.75﹣9.63+8.25﹣1.37       

81.5×15.8+81.5×51.8+67.6×18.5    

99999×26+33333×22.

1÷64÷0.125÷0.025÷0.05.


4530×1.9+53×276+370×90+34×453+5300×1.71.

计算:

65.5﹣4.29+24.6﹣5.71

1.25×3.14+125×0.0257+1250×0.00229.

计算36×1.09+1.2×67.3= .

 

计算:2.125×7.5×32。

巧算.

例:96×0.25

=24×4×0.25

=24×1

=24

0.125×64=

3.17+7.48-2.38+0.53-3.48-1.62+5.3
计算: 20.09×31.5+2.009×317+200.9×3.68= 
计算:20.09×62+200.9×3.9-7×2.87=
计算:19.98×37+199.8×2.3+9.99×80
计算:7.816×1.45+3.14×2.184+1.69×7.816=
计算:12.5÷3.6-7÷9+8.3÷3.6
计算:223×7.5+22.3×12.5+230÷4-0.7×2.5+1
计算:[2007-(8.5×8.5-1.5×1.5)÷10]÷160-0.3