# Order of Operations

by
**mvidetich**

Last updated 5 years ago

** Discipline: **

Math ** Subject: **

Number Operations
** Grade:**

4

INTRO TO ORDER OF OPERATIONS

TASK 1: I CAN LEARN TO MULTIPLY & DIVIDE BEFORE I ADD OR SUBTRACT

TASK 2: I CAN LEARN TO WORK FROM LEFT TO RIGHT WHEN I EVALUATE EXPRESSIONS

TASK 3: I CAN LEARN TO WORK FROM LEFT TO RIGHT WHEN I EVALUATE EXPRESSIONS

TASK 4: I CAN LEARN TO EVALUATE OPERATIONS IN PARENTHESES FIRST

A very long time ago, mathematicians agreed about "rules" for how we simplify expressions. We have to have rules so that we can all solve expressions and get the same result every time.

Mathematicians have decided to always work from the most complex to the least complex. In other words, do the harder stuff first!

What would you do first in this problem? 2 x 6 ÷ 3Not sure?! It's problems like these that made mathematicians decide we needed a rule to work left to right!

Sometimes you will have lots of operations in one equation. Let's practice determining what we will do first in these problems:14 + 10 ÷ 2 x 318 - 6 + 4 x 220 - 5 - 8 + 3

Mathematicians use parentheses as a signal when we need to do a certain part of an expression first- even if it is out of order! Parentheses are the bossy "DO ME FIRST!" signal in the Order of Operations.

Practice on this webpage

What would you do first in this problem?6 + 3 x 5

ORDER OF OPERATIONS

2 x 6 ÷ 312 ÷ 34

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