Answer:
Circle the 6.
Explanation:
In the first line, it states: 40 - 2 × 3² + 10.
Remember to follow PEMDAS. PEMDAS is the order of operation, and equals:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction.
In this case, instead of applying the power (3² = 3 * 3 = 9), the person simply multiplied (3² ≠ 3 * 2 = 6).
Instead, the order should look like:
40 -2 * 3² + 10
40 -2 * (3 * 3) + 10
40 -2 * (9) + 10
40 + (-2 * 9) + 10
40 + (-18) + 10
50 - 18
32