计算题 你大家帮帮忙吧

来源:百度知道 编辑:UC知道 时间:2024/05/20 05:18:45
简便计算
44/45*37
27*15/26
1997/1998*1999
125*0.32*25
860÷125÷8
4.6*76+46*2又2/5

44/45*37
=(1-1/45)*37
=1*37-1/45*37
=37-37/45
=36又8/45

27*15/26
=(26+1)*15/26
=26*15/26+15/26*1
=15+15/26
=15又15/26

1997/1998*1999
=1997/1998*(1998+1)
=1997/1998*1998+1997/1998*1
=1997+1997/1998
=1997又1997/1998

125*0.32*25
=(125*0.8)*(0.4*25)
=100*10
=1000

860÷125÷8
=860÷(125*8)
=860÷1000
=0.86

4.6*76+46*2又2/5
=46*7.6+46*2.4
=46*(7.6+2.4)
=46*10
=460