Joy tried to evaluate the expression 10 - 8 + 4 x 3. Here is her work: 10 - 8 + 4 x 3
= 10 - 8 + 12
Step 1
= 2 + 12
Step 2
= 14
Step 3
Is Joy's work correct?
No, Joy made a mistake in Step 1. Joy should have subtracted first. The order
of operations says to work from left to right.
No, Joy made a mistake in Step 2. Joy should have added before she
subtracted. The order of operations says to add before you subtract.
Yes, Joy's work is correct.