Question

用简便方法计算 一共有两道题

Answer 1

3 5/3×25 5/2+37.9×6 5/2
=3.6×25.4+37.9×6.4
=91.44+37.9×6.4
=91.44+242.56
=334

追问

 

也是简便

追答

17/1×4/3+17/3×2/1+17/8×32/3
=（17/1+17/3+17/8）×4/3×2/1×32/3
=17/12×4/3×2/1×32/3
=1008/27

17/1×4/3+17/3×2/1+17/8×32/3
=（17/1+17/3+17/8）×4/3×2/1×32/3
=17/12×4/3×2/1×32/3
=1008/27

Answer 2

54137788

Answer 3

l don't no

Answer 4

 

追答

看在我这么辛苦的份上，采纳吧

Answer 5

等