Respuestas

2014-03-09T16:50:51+01:00
9:2+(9+1)*2
4.5+(9+1)*2
4.5+10*2
4.5+20
24.5
2014-03-09T17:51:53+01:00
Simple:

tenemos:

(100/10+8-9)/2+(9+1)(2)

resolviendo parentesis quedaria:


=>10+1/2+(10)(2)

=>11/2+20

=>11/22

=>1/2

=>0.5

espero ayude