Casio fx-82ZA PLUS User's Guide download pdf (Page 11)

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Important: • Depending on the type of calculation result that is on the display

when you press the f key, the conversion process may take some time to

perform. • With certain calculation results, pressing the f key will not convert

the displayed value. • You cannot switch from decimal form to mixed fraction

form if the total number of digits used in the mixed fraction (including integer,

numerator, denominator, and separator symbols) is greater than 10.

Note: With Natural Display (MathO), pressing 1= instead of = after

inputting a calculation will display the calculation result in decimal form.

Pressing f after that will switch to the fraction form or π form of the

calculation result. The ' form of the result will not appear in this case.

Basic Calculations

Fraction Calculations

Note that the input method for fractions is different, depending upon whether

you are using Natural Display or Linear Display.

3 2 6

B 2 ' 3 e+ 1 ' 2 =

or ' 2 c 3 e+' 1 c 2 =

b 2 ' 3 + 1 ' 2 = 7 {6

2 2

4 − 3

B 4 -1'( () 3 e 1 c 2 =

b 4 - 3 ' 1 ' 2 = 1 {2

Note: • Mixing fractions and decimal values in a calculation while Linear

Display is selected will cause the result to be displayed as a decimal value.

• Fractions in calculation results are displayed after being reduced to their

lowest terms.

To switch a calculation result between improper fraction and mixed

fraction form: Perform the following key operation: 1f(

)

To switch a calculation result between fraction and decimal form:

Press f.

Percent Calculations

Inputting a value and pressing 1((%) causes the input value to become

a percent.

150 × 20% = 30 150 * 20 1((%) = 30

Calculate what percentage of 880 is 660. (75%)

660 / 880 1((%) =

Increase 2500 by 15%. (2875)

2500 + 2500 * 15 1((%) =

2875

Discount 3500 by 25%. (2625)

3500 - 3500 * 25 1((%) =

2625

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Casio fx-82ZA PLUS User's Guide Page 11

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