六年级上册数学必考《分数简便运算》练习

六年级上册数学必考《分数简便运算》练习


简介:
×37 =(1 - )×37 =1×37- ×37 =37- =36 ( + + )×24 = ×24 + ×24 + ×24 =4+3+2 =9 15×(+ )×17 =15×17×(+) =15×17× +15×17× =17×7+15×5 =194 ×0.25 + × -25% =( -1)× =0× =0