Question

Scrie paranteze pentru a obține rezultatele:

A) 3x1+2x4+1=30
B)3x1+2x4+1=28
C)3x1+2x4+1=21

Answer 1

A) 3x(1+2x4+1)=30
B)3x(1+2x4)+1=28
C)(3x1+2)x4+1=21

Answer 2

a)3*(1+2*4+1)=30
3*(1+8+1)=30
3*10=30
b)3*(1+2*4)+1=28
3*(1+8)+1=18
3*9+1=28
c)(3*1+2)*4+1=21
(5*4)+1=21