Remember PEMDAS (Parentheses, Exponents, Multiplication ⇔ Division, Addition ⇔ Subtraction), which is the order you solve parts of an expression.
(7 + 5) ÷ 6 + 10² Add 7 and 5 (Parentheses)
12 ÷ 6 + 10² Square 10 (10 x 10) (Exponents)
12 ÷ 6 + 100 Divide 12 by 6 (Division)
2 + 100 Add (Addition)
102
