priority.
When an expression contains only addition and subtraction, you work from left to right.
For example:
41 + 20 − 9
First:
41 + 20 = 61
Then:
61 − 9 = 52
You should not randomly change the order of the operations or subtract numbers before completing the calculation on the left.
Understanding this simple rule can help you avoid mistakes in many everyday math problems.
Why Should You Challenge Your Brain With Math Puzzles?
Solving short mathematical challenges can be a fun way to keep your mind active.
Here are a few reasons
