Question

dati in factor comun
1. 12×13+12×15+12×72
2.702×256-702×55+702×99
3.125×234-125×28+125×194
4.1000×372+259×1000-153×1000​

Answer 1

Răspuns:

1). = 12(13+15+72)

=12x100

=1200

2). 702(256-55+99)

=702x300

=210.600

3). = 125(234-28+194)

=125 x 400

=50.000

4).  =1000 (372+259-153)

=1000 x 478

=478.000

Explicație pas cu pas:

Answer 2

Explicație pas cu pas:

12×13+12×15+12×72=12(13+15+72)=12×100

702×256-702×55+702×99=702(256-55+99)=702×300

125×234-125×28+125×194=125(234-28+194)=125×400

1000×372+259×1000-153×1000=1000(372+259-153)=1000×(631-153)=1000×478