Question

delia si sorin au folosit pt o macheta 35 stejari si 15 fagi.stiind ca au fost asezati cate 5 copaci pe un rand.afla pe cate randuri sunt asezati toti copacii.rezolva in doua moduri

Answer 1

(35+15):5=50:5=10 (randuri)
mod 2
35:5+15:5=7+3=10 (randuri)

Answer 2

1) 35:5=7
15:5=3
7+3=10 randuri in total!
2) (35:5)+(15:5)
=7+3
=10 randuri in total!