Question

I. (3+3+3)-(2+2+2) II. 10-2 +1-(2+1) = ... III. 7-7+(8-7)+(9-7) ​

Answer 1

Explicație pas cu pas:

I. (3+3+3)-(2+2+2)=9-6=3

II. 10-2 +1-(2+1)=8+1-3=9-3=6

III. 7-7+(8-7)+(9-7) =0+1+1=2