👤

Ema, Victor si Daria au folosit pt un experiment 217 cuburi de gheata.Ema si VICTOR AU FOLOSIT 158 DE de cuburi, iarVictor si Daria 144 de cuburi. Cate
cuburi a folosit fiecare copil?


Răspuns :

a+b+c=217
a+b=158
b+c=144
158+c=217 c=217-158 =59
a+144=217 a=217-144 =73
73+b+59=217 b=217 -59-73 = 158-73= 85
73+85+59=158+59=217
217-144=73 cuburi Ema
158-73=85 cuburi Victor
144-85=59 cuburi Daria
verificam: 73+85+59=217 deci corect succes.