Question

rezolvare in doua moduri 4*(3+2+4) si 5*(9-3-5)

Answer 1

4.9=36, 4.3+4.2+4.4=12+8+16=36  5.1=5  5.9-5.3-5.5=45-15-25=30-25=5 Punctul inseamna ori(adica inmultit).

Answer 2

4*(3+2+4)=4*(5+4)=4*9=36
4*(3+2+4)=(4*3)+(4*2)+(4*4)=12+8+16=20+16+36
 5*(9-3-5)=5*(6-5)=5*1=5
 5*(9-3-5)=(5*9)-(5*3)-(5*5)=45-15-25=30-25=5