Operations: Parenthesis — Let's Practice!
Basics on the topic Operations: Parenthesis — Let's Practice!
Today we are practicing operations: parenthesis with Razzi! This video contains examples to help you further practice and grow confident in this topic.
Transcript Operations: Parenthesis — Let's Practice!
Razzi says get these items ready, because today we're going to practice operations: Parenthesis. It's time to begin! Remember, always solve inside the parentheses first! Solve seven minus three times two. Pause the video to work on the problem, and press play when you are ready to see the solution! Solve inside the parentheses first. Seven minus three equals four. Rewrite the equation. Solve four times two, which is eight. Did you also get eight? Let's tackle the next problem! Solve sixtyeight minus four times ten. Pause the video to work on the problem, and press play when you are ready to see the solution! Solve inside the parentheses first. Four times ten equals forty. Rewrite the equation. Solve sixtyeight minus forty, which is twentyeight. Did you also get twentyeight? Let's tackle the final problem! Solve five plus two times ten minus nine. Pause the video to work on the problem, and press play when you are ready to see the solution! Solve inside the left parentheses first. Five plus two equals seven. Rewrite the equation. Solve inside the remaining parentheses. Ten minus nine is one. Rewrite the equation. Solve seven times one, which is seven. Did you also get seven? Razzi had so much fun practicing with you today! See you next time!
Operations: Parenthesis — Let's Practice! exercise

Select the action to do first.
HintsRemember, in a problem like (12  4) x 2, we would rewrite the problem as 8 x 2.
SolutionWhen we are solving a problem with parentheses, always solve the problem inside the parenthesis first.
For example:
(30  15)  10 = __
15  10 = 5

How can we rewrite these problems?
HintsRemember, to rewrite the problems, you must solve inside the parenthesis first.
Look at this example:
(45  20) + (10  5) can be rewritten as 25 + 5.
(45  20) gives us 25, (10  5) gives us 5.
Solution(68  8) x 1 can be rewritten as: 60 x 1.
 (68  8) is 60, so the problem becomes 60 x 1.
 (17 + 10) is 27, and (10 + 10) is 20, so the problem becomes 27  20.
 (20  5) is 15, so the problem becomes 55 + 15.

What is (34  10) + (14  7)?
HintsRemember, to rewrite the problem, solve what is inside the parenthesis first.
Look at this example:
(50  5)  (20 x 2) can be rewritten as 45  40.
45  40 = 5.
Solution(34  10) is 24, and (14  7) is 7, so we can rewrite the problem as: 24 + 7.
24 + 7 = 31

Solve the equations.
HintsAlways solve inside the parenthesis first. Rewrite the problem on paper as you solve step by step.
Think about what to do first: (8 + 12) x 2.
First, solve inside the parenthesis: (8 + 12) = 20.
Then, solve the problem!
Solution(8 + 12) x 2 = 40.
(8 + 12) is 20, so we rewrite the equation as: 20 x 2.
20 x 2 = 40
8  (35  33) = 6.
(35  33) is 2, so we rewrite the equation as: 8  2.
8  2 = 6.
6 + (6 x 2) = 18.
(6 x 2) is 12, so we rewrite the problem as: 6 + 12.
6 + 12 = 18.

Choose the correct answer.
HintsRemember, solve the equation in the parenthesis first: (9  4) = ?
After you get the answer for 9  4 add 11 to it.
Solution(9  4) + 11 = 16
(9  4) = 5, so we rewrite the equation as: 5 + 11.
5 + 11 = 16.

Solve the equations.
HintsRemember, rewrite the problem by solving inside the parenthesis first.
Look at this example: (4 + 8) x (10  9) = ?
We solve inside the parenthesis first. (4 + 8) = 12, and (10  9) = 1, so we rewrite the problem as: 12 x 1.
12 x 1 = 12
Solution(24 + 8)  (4 + 1) = 27. (24 + 8) is 32, and (4 + 1) is 5, so we rewrite it as: 32  5 = 27.
56  (60  10) = 6. (60  10) is 50, so we rewrite it as: 56  50 = 6.
(75  15) + (40  30) = 70. (75  15) is 60, and (40  30) is 10, so we rewrite it as: 60 + 10 = 70.
(4 x 2) + (6 x 2) = 20. (4 x 2) is 8, and (6 x 2) is 12, so we rewrite is as: 8 + 12 = 20.