Help Algebra
Help algebra.com: Getting Rid of Parentheses
Resource explains how to simplify several types of expressions that contain expressions using the properties of addition and multiplication and applying the properties with the order of operations.
Other
Order of Operations Is the Grammar of Mathematics
Sentences and phrases can be formed to help you remember the order of operations.
Sophia Learning
Sophia: Adding Words to Quotations: Lesson 3
This lesson goes over how to alter a quotation by adding or changing words. It is 3 of 3 in the series titled "Adding Words to Quotations."
Sophia Learning
Sophia: Brackets: Lesson 7
This lesson introduces brackets and how they are used. It is 7 of 15 in the series titled "Brackets."
The Economist
The Economist: Economist Style Guide: Punctuation
This resource provides a brief discussion of each of the following types of punctuation: apostrophes, brackets, colons, commas, dashes, full-stops, inverted commas, question marks, and semi-colons. Examples are included for each type of...
NumberNut
Number Nut: Ordering Operations With Parentheses
A thorough lesson on order of operations that includes detailed examples and related vocabulary.