Solve:2−3+1 2-3+1 2−3+1
We use the substitution property and add parentheses for the addition operation:
(2+1)−3= (2+1)-3= (2+1)−3=
Now, we solve the exercise according to the order of operations:
2+1=3 2+1=3 2+1=3
3−3=0 3-3=0 3−3=0
0