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  1. Maths
  2. Year 9
  3. Using a Calculator
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Order of Operations: Using Brackets on a Calculator

In this worksheet, students use the order of operations and the brackets buttons on a calculator to arrive at answers to problems.

'Order of Operations: 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

In this worksheet, you must use the brackets buttons on your calculator.

 

Remember

The top and the bottom must go in brackets, so that:

   
 7 + 3
5 × 2
=
(7 + 3)
(5 x 2)
= 1

 

The order of operations is

1. brackets

2. powers or indices

3. multiplication and division

4. adding and substraction

 

3 × 42 = 3 × 16 = 48

and (3 × 4)2 = 122 = 144

 

−52 = −25  = (−(5 × 5))

(−5)2 = +25 = (−5) × (−5)

Work out:

 12 × 772
92 × 20
  = 
 

 

Round your answer to the nearest whole number.

Work out:

 ( 12 × 77 )2
92 × 20
  = 
 

 

Round your answer to the nearest whole number.

 

Work out:

 -77 x 122
92 + 20
  = 
 

Work out:

77 x ( -12)2
92 + 20
  = 
 

Work out:

 79 × 32
3 × 72
  = 
 

 

Round your answer to the nearest whole number.

Work out:

 ( 79 × 3 )2
3 × 72
  = 
 

 

Round your answer to the nearest whole number.

Work out:

 -3 x 792
3 + 72
  = 
 

 

Round your answer to the nearest whole number.

Work out:

3 x ( -79)2
3 + 72
  = 
 

 

Round your answer to the nearest whole number.

Work out:

 89 + 452
14 × 63
  = 
 

 

Round your answer to the nearest whole number.

Work out:

 ( 89 + 45 )2
14 × 63
  = 
 

 

Round your answer to the nearest whole number.

  • ANSWERS
  • Question 1

Work out:

 12 × 772
92 × 20
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
39
  • ANSWERS
  • Question 2

Work out:

 ( 12 × 77 )2
92 × 20
  = 
 

 

Round your answer to the nearest whole number.

 

CORRECT ANSWER
464
  • ANSWERS
  • Question 3

Work out:

 -77 x 122
92 + 20
  = 
 

CORRECT ANSWER
-99
  • ANSWERS
  • Question 4

Work out:

77 x ( -12)2
92 + 20
  = 
 

CORRECT ANSWER
99
  • ANSWERS
  • Question 5

Work out:

 79 × 32
3 × 72
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
3
  • ANSWERS
  • Question 6

Work out:

 ( 79 × 3 )2
3 × 72
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
260
  • ANSWERS
  • Question 7

Work out:

 -3 x 792
3 + 72
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
-250
  • ANSWERS
  • Question 8

Work out:

3 x ( -79)2
3 + 72
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
250
  • ANSWERS
  • Question 9

Work out:

 89 + 452
14 × 63
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
2
  • ANSWERS
  • Question 10

Work out:

 ( 89 + 45 )2
14 × 63
  = 
 

 

Round your answer to the nearest whole number.

CORRECT ANSWER
20
---- OR ----

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