Sketchplanations

Explaining one thing a week in a sketch

Figuring out the order of operations in a calculation using BODMAS (or PEMDAS)

BODMAS

School mathematics refresher: when faced with a calculation that looks like it could be tackled multiple ways, use BODMAS to help clear it up (See PEMDAS at the end).

BODMAS is an acronym (as opposed to an initialism) that tells you the order of operations to tackle in a calculation.

BODMAS stands for Brackets, Order/Indices, Division, Multiplication, Addition, and Subtraction. So in 2 + 4 x 2 you don't end up with 6 x 2 = 12 but instead, 2 + 8 = 10

BODMAS is generally built into calculators (you can search 2 + 4 x 2 in Google to see). If you need additions or subtractions to be carried out first you can surround them in brackets eg (2 + 4) x 2

I always learned it as BODMAS, but many people told me they learned this as PEMDAS. The idea is the same just the words are different, and the ordering of Division and Multiplication, which are interchangeable:

PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction

Keep exploring

The two primary temperature scales of Celsius and Fahrenheit side-by-side calling out water freezing, body temperature and water boiling
Know your dashes, em dash, en dash and hyphen and when to use each with examples
A breakdown of constructing the number 13 in the decimal system of base 10 next to 13 written in the base 2 of binary
A circle with a number of its mathematical parts labelled. And someone trying to climb up the tangent.
Organise veg in the fridge - Sketchplanations
Buy Me A Coffee