Casio FX-82AU PLUS manual Working with fractions, 114 2536, 11 8.55

Models: FX-82AU PLUS

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Working with fractions

Practise the calculator fractions skills outlined on pages 6 and 7 with the following questions that involve fractions. Remember to use the round replay button to position the cursor correctly when you are using MathIO.

1.

Evaluate

1

+

3

 

and express your answer as a mixed numeral, improper fraction

 

 

4

 

2

 

 

 

 

 

 

 

 

and a decimal.

 

 

 

2.

Express

7

×

 

2

 

 

as a fraction.

 

 

 

 

 

8

5

 

 

 

 

 

 

3.

Write the value of 113

4

as a fraction.

5

4.

Evaluate

 

9

×153

and express your answer as an improper fraction.

10

5.Write the answer to 138 × 2 14 as a mixed numeral.

6. Find the value of 3 12 ÷ 2 35 and express the value as an improper fraction.

7.Calculate3107 + 5 35 . Write your answer as a mixed numeral.

8.Find the value of (35)2 . Write your answer as a fraction and as a decimal.

9.Calculate the value of 1169 and express your answer as an improper fraction.

10.Evaluate2 34 + 12 ×112 . Express your answer as a mixed numeral.

11. Find a decimal value for 145 + 5 25 ÷ 45 .

12.The u button produces the reciprocal of a fraction. Enter 2 uand record the

5

reciprocal of 2 as an improper fraction and a mixed numeral.

5

13.What is the reciprocal of 5 ? Express your answer as a mixed numeral.

9

14.Write the reciprocal of 312 as a fraction.

15.What is the value of 3 multiplied by the reciprocal of 3 ?

55

Answers

1 114 ,

5

, 1.25 2

7

3

8

 

4 2536

5 3

3

6 3526

7 9

3

8

9

, 0.36 9

5

4

20

15

32

10

25

4

10 312

11 8.55 12

5

, 2

1

13

1

4

 

14

2

 

15 1

 

 

 

 

 

2

2

5

7

 

 

 

 

 

© Sue Thomson and Shriro Australia PTY Limited. This page may be photocopied for classroom use.

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Casio FX-82AU PLUS manual Working with fractions, 114 2536, 11 8.55