Question

va rog repede va rog din suflet vă rog​

Answer 1

Răspuns:

15x(13+12)=15x25=375

(15x13)+(15x12)=195+180=375

6x(70-20)=6x50=300

(6x70)-(6x20)=420-120=300

23x(20+6)=23x26=598

(23x20)+(23x6)=460+138=598

(17-15)x14=2x14=28

(17x14)-(15x14)=238-210=28

Answer 2

Explicație pas cu pas:

15×(13+12)=15×25=375

15×(13+12)=(15×13)+(15×12)=195+180=375

4×(70-20)=4×50=200

4×(70-20)=(4×70)-(4×20)=280-80=200

23×(20+6)=23×26=598

23×(20+6)=(23×20)+(23×6)=460+138=598

(17-15)×14=2×14=28

(17-15)×14=(14×17)-(14×15)=238-210=28