Question 43216
15 - 4 + 1 ÷ 2 * 3
15 - 4 + (1 ÷ 2) * 3
15 - 4 + 0.5 * 3
15 - 4 + (0.5 * 3)
15 - 4 + 1.5
(15 - 4) + 1.5
11 + 1.5
12.5