简便运算题 12.5×0.25×32 7.2÷1.25÷8 136-136×4/5-136×0.2

简便运算题 12.5×0.25×32 7.2÷1.25÷8 136-136×4/5-136×0.2

见图
追问17÷51+（1/68+2/51）×17追答17/51 + 1/68 * 17 + 2/51 * 17
=(1+2) * 17/51 + 17/68
=51/51 + 1/4
=1 + 1/4
=5/4追问2.5×36追答2.5*4*9
=10*9
=90

计算如下追答12.5×0.25×32=12.5×8义0.25x4=100
7.2÷1.25÷8=7.2÷(1.25×8)=0.72
136-136×4/5-136×0.2=136×(1-4/5-1/5)=0追问不满意︶︿︶追答亲，看不懂？追问嗯不是17÷51+（1/68+2/51）×17追答0.125×8=1
0.25×4=1
0.2=1/5
这是要记的追问我知道了拜拜再见！追答17÷51+（1/68+2/51）×17
=17×(1/51+2/51+1/68)=5/4

12.5×0.25×32
=（12.5×8）×（0.25×4）
=100×1
=100
7.2÷1.25÷8
=7.2÷（1.25×8）
=7.2÷10
=0.72
136-136×4/5-136×0.2
=136×（1-4/5-0.2）
=136×0
=0追问17÷51+（1/68+2/51）×17追答17÷51+（1/68+2/51）×17

=1/3+1/68×17+2/51×17
=1/3+1/4+2/3
=1/3+2/3+1/4
=1又1/4追问2.5×36谢谢这是最后一题追答2.5×36

=2.5×4×9
=10×9
=90

图

追答

追问17÷51+（1/68+2/51）×17