👤

calculeaza prin adunare repetata 2×20

Răspuns :

2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2=40
20+20=40 sau 2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2+2= 40