Question

1. Evidențiind factorul, comun efectuați:
a. 3•12-3•2;. b. 4•23+4•11;.
c. 7•49+31-7•50 d. 17•15-15•7; e. 5•18+5•2;
f. 9•11+30•11-11•16;

PLS REPEDE SAU COROANA!
​

Answer 1

Răspuns:

a.3×(12-2)=3×10=30

b.4×(23+11)=4×34=136

c.7×(49+31-50)=7×30=210

d.15×(17-7)=15×10=150

e.5×(18+)=5×20=100

f.11×(9+30-16)=11×23=253