Combined Operations: How to Solve These Types of Problems
In this post, we are going to learn the order of operations that you have to follow to do combined operations: addition, subtraction, multiplication, and division. Combined operations cannot be done in a random manner. You have to follow an order:
- Step 1: Do the operations that are inside of the parentheses.
3 x ( 2 + 4 )
First, we do the operation inside the parentheses: 2 + 4 = 6.
Next, we finish the operation: 3 x 6 = 18.
- Step 2: Do the multiplication and division operations, always working from left to right.
24 ÷ 6 x 2
First we do the division because it is further to the left than the multiplication: 24 ÷ 6 = 4.
Then we carry out the multiplication operation: 4 x 2 = 8.
- Step 3: Last we do the addition and subtraction.
2 + 3 x 5
First we do the multiplication: 3 x 5 = 15.
Then we do the addition: 2 + 15 = 17.
We are going to look at an example of combined operations:
6 + ( 8 – 3) x 2
- First, we do the operation in the parentheses: 8 – 3 = 5. This leaves us with: 6 + 5 x 2.
- Now we do the multiplication: 5 x 2 = 10.
- And lastly we are left with the addition operation: 6 + 10 = 16.
Let’s look at another example of combined operations:
21÷ 3 + 7 x 4
- The first thing to do is do any operations in parenthesis, but in this case, there are not any.
- The next step is to do the multiplication and division: 21 ÷ 3 = 7 and, on the other side, 7 x 4 = 28.
- Now we are left with only the addition operation: 7 + 28 = 35.
If you want to learn more about combined operations, you can review the previous posts we have written on this subject:
And if you want to learn much more elementary math, join Smartick and keep learning.