3 * 2 ^ 2 < 16 + 5
should be performed in the order PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)/
Therefore, obtain
3 * 2 ^ 2 < 16 + 5
3 * 4 < 16 + 5 Exponentiation first
12 < 16 + 5 Multiplication second
Similarly, obtain
100 / 10 * 2 > 15 - 3
100 / 20 > 15 - 3 Multip[lication first
5 > 15 - 3 Division second