Tag Archives: Aunt Sally

PEMDAS and a Stupid Arbitrary Rule

PEMDAS and a Stupid Arbitrary Rule

The order of operations is rife with rules created merely for convenience. When teaching these to kids, it’s clear how they see it as a stupid arbitrary rule. Because often it is! More

Order of Operations Explained: Addition, Subtraction and Conclusions

Order of Operations Explained: Addition, Subtraction and Conclusions

The Order of Operations series comes to a conclusion with a discussion of addition, subtraction and how textbooks often disagree!More

The Order of Operations Explained: Multiplication and Division

The Order of Operations Explained: Multiplication and Division

Last week’s article on the order of operations included a quick mention that division is the same as multiplication – but different. Now’s the time to explain that a bit.More

The Order of Operations Explained: Exponents, Multiplication and Addition

Next in the series explaining the order of operations is this discussion on the relation of exponents, addition and multiplication and how to remember the order of operations… the natural way!More

The Order of Operations Explained: Exponents

Next in the series explaining the order of operations is this discussion on exponents and everything this includes. And roots and logs are in this one!More

The Order of Operations Explained: Parenthesis

The Order of Operations Explained: Parenthesis

We continue the series explaining the order of operations with a discussion on parenthesis and all the various meanings of this word. You’ll be surprised as to what it can mean!More

The Order of Operations Explained: Intro and Mnemonics

Part 1 in the series. The order of operations is a set of rules – like the drivers’ handbook for math. If everyone follows the rules, we’ll all be safe. But if someone makes a bad turn, we could be looking at a crash.More