This equation is another quick test of the order of operations. The expression is 9 − 3 × 0 + 6.
Multiplication must be completed first, so calculate 3 × 0. That gives 0. Now the expression is 9 − 0 + 6.
Working from left to right, 9 − 0 is 9, and 9 + 6 is 15.
Answer: 15.
The multiplication by zero is the key. Anyone who starts subtracting before doing the multiplication can easily end up with a different result.


