Ben tried to calculate $12 + 4 \times 10$ and got an incorrect answer of 160. The problem asks to identify the mistake Ben made and to find the correct answer.

1. Problem Description

Ben tried to calculate $12 + 4 \times 10$ and got an incorrect answer of

1

6

0. The problem asks to identify the mistake Ben made and to find the correct answer.

2. Solution Steps

a) Ben's Mistake:

Ben added 12 and 4 before multiplying 4 by

1

0. The order of operations (PEMDAS/BODMAS) dictates that multiplication should be performed before addition.

b) Correct Calculation:

The correct order of operations is to first multiply and then add.

$12 + 4 \times 10$

$4 \times 10 = 40$

$12 + 40 = 52$

3. Final Answer

a) Ben added 12 and 4 before multiplying 4 by

1

0. He did not follow the order of operations (PEMDAS/BODMAS).

b) The correct answer is 52.