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  1. Maths
  2. Year 7
  3. Using a Calculator
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Using Brackets on a Calculator

In this worksheet, students use the brackets keys on their calculator to work out the given calculations.

'Using Brackets on a Calculator' worksheet

Key stage:  KS 3

Curriculum topic:   Number

Curriculum subtopic:   Use Calculators/Technology for Accuracy

Difficulty level:  

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Worksheet Overview

QUESTION 1 of 10

Find the brackets keys on your calculator.  

 

There should be one to open brackets ( ....

.....and one to close brackets )

 

To work out the following, simply type it carefully on to your calculator screen.

 

520 - (577 + 581) =
−638
 

Using brackets on the calculator, work out

 

547 - (981 + 154) =
 
 

Using brackets on the calculator, work out

 

754 - (543 + 826) =
 
 

Using brackets on the calculator, work out

 

249 - (614 + 917) =
 
 

Using brackets on the calculator, work out

 

520 - (577 + 581) =
 
 

Using brackets on the calculator, work out

 

23 − (95.75 − 33.18) =
 
 

Using brackets on the calculator, work out

 

92.46 − (23.91 − 90.32) =
 
 

Using brackets on the calculator, work out

 

65.37 − (63.43 − 83.13) =
 
 

Using brackets on the calculator, work out

 

39.64 − (50.11 − 13.45) =
 
 

Using brackets on the calculator, work out

 

−(5822) =
 
 

Using brackets on the calculator, work out

 

(−5822) =
 
 
  • ANSWERS
  • Question 1

Using brackets on the calculator, work out

 

547 - (981 + 154) =
 
 
CORRECT ANSWER
-588
- 588
EDDIE SAYS
Did you type this into your calculator using the brackets? Remember if you don't have a calculator you can always use a free scientific one online.
  • ANSWERS
  • Question 2

Using brackets on the calculator, work out

 

754 - (543 + 826) =
 
 
CORRECT ANSWER
-615
- 615
EDDIE SAYS
You need to type this in exactly as it appears on your scientific calculator. Did you remember to do that?
  • ANSWERS
  • Question 3

Using brackets on the calculator, work out

 

249 - (614 + 917) =
 
 
CORRECT ANSWER
-1282
  • ANSWERS
  • Question 4

Using brackets on the calculator, work out

 

520 - (577 + 581) =
 
 
CORRECT ANSWER
-638
  • ANSWERS
  • Question 5

Using brackets on the calculator, work out

 

23 − (95.75 − 33.18) =
 
 
CORRECT ANSWER
-39.57
  • ANSWERS
  • Question 6

Using brackets on the calculator, work out

 

92.46 − (23.91 − 90.32) =
 
 
CORRECT ANSWER
158.87
  • ANSWERS
  • Question 7

Using brackets on the calculator, work out

 

65.37 − (63.43 − 83.13) =
 
 
CORRECT ANSWER
85.07
  • ANSWERS
  • Question 8

Using brackets on the calculator, work out

 

39.64 − (50.11 − 13.45) =
 
 
CORRECT ANSWER
2.98
  • ANSWERS
  • Question 9

Using brackets on the calculator, work out

 

−(5822) =
 
 
CORRECT ANSWER
-338724
  • ANSWERS
  • Question 10

Using brackets on the calculator, work out

 

(−5822) =
 
 
CORRECT ANSWER
-338724
EDDIE SAYS
Did you type this into your calculator using the brackets? Remember if you don't have a calculator you can always use a free scientific one online. Did you remember to include the minus sign?
---- OR ----
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