Talk:Five Fives to Combat/@comment-33431934-20200127092301/@comment-25612966-20200127094403



This is correct due to the order of operations:


 * Everything in parentheses [Tier 1] go first
 * Exponents (powers and roots) [Subtier I] go second
 * Multiplication and division [Subtier II] go third
 * Addition and subtraction [Subtier III] go last
 * Left to right, for each tier and subtier

Tiers 2, 3, and 4 are brackets, braces, and "outsides" respectively.

9 was the hardest, but then I realized that 5×5-5=20, and 20÷5=4.