Question

Elevii clasei a |||-a au 5 cutii cu cate 235 de jetoane cu numere si 5 cutii cu cate 255 de jetoane cu litere. Cate jetoane sunt, in total? Rezolva in doua moduri

Answer 1

mod. 1:

5×235+5×255=
1175+1275=
2450

mod. 2:

5×(235+255)=
5×490
2450

Answer 2

I. 5×235=1175

5×255=1275

1175+1275=2450

II. 5×235+5×255=

5×(235+255)=

5×490=2450