This is a Clilstore unit. You can .
To finish the unit we need to know what is the correct order when we do different operations with natural numbers.
The order to do the operations is:
1. Operations in Parentheses and Brackets.
3. Multiplications and divisions.
4. Additions and subtractions.
Just in case that we have only multiplications and divisions, or only additions and subtraction, the order to do the operations is from the left to the right.
Short url: http://multidict.net/cs/4161