Casio FX-82AU PLUS Calculator User Manual


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20
Fractions and Decimals
Remember!
Whenyouhaveafractionoradecimal displayedonthescreenpressingthenbutton
willallowyoutotogglebetweendecimalandfractionalrepresentation.PressingSHIFT
nwilltogglebetweenanimproperfractionandmixednumeralrepresentationfor
expressionswithavaluegreaterthan1.InstructionsforenteringfractionsinMathIOand
LineIOareonpages6and7.
Practice your skills with the following questions.
1. Express
3
4
1 asadecimal.
2. Express
7
8
2
asanimproperfraction.
3. Change0.135toafraction.
4. Write2.65asanimproperfraction.
5. Whatis
11
5
asamixednumeral?
6. Enter5%intoyourcalculatorbypressing5SHIFT(.Presspandn to
express5%asadecimalandasafraction.
7. Express36%asafraction.
8. Whatis8%asadecimal?
9. Whatnumberisequivalentto125%?
10. Express45%asafraction.
11. Write8.5%asadecimal.
12. Whatdecimalisequivalentto
3
8
?
13. Whatimproperfractionisequivalentto
2
5
4 ?
14.Express
8
12
asafractioninitssimplestform.(Enterthefractionthenpressp.)
15.Express
85
25
asamixednumeralexpressedinsimplestform.
Answers
11.75 2
23
8
3
27
200
4
53
20
5
1
5
2
60.05,
1
20
7
9
25
80.08 91.25
10
9
20
110.085 12 0.375 13
22
5
14
2
3
15
17
5
©SueThomsonandShriroAustralia PTYLimited.Thispagemaybephotocopiedforclassroomuse.
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