Casio FX-82AU PLUS Manuale Utente

Using the memories

Remember!
You must clear the memory before you place anything in the memory. If you forget to
clear the memory the calculator will add the new value to the value that is already in the
memory. The instructions for clearing the memory are on page 16.

1 In which of the following calculators is a number stored in the memory?

2 Clear the memory on your calculator and place the value of p in the memory. Use

the Jmp buttons to determine the value of the following expressions.
Express each answer correct to 2 decimal places.
A 2 + p

B 2p

C 12 - p

D p ¸ 2

E 2 ´ p ´ 4.3

3 Store the result of the calculation 3 + 8.1 in the memory, then determine the value

of each expression.
A (3 + 8.1) ´ 4.5

B 12.7 + 3 + 8.1

C (3 + 8.1) ¸ 4.3

Hint! If you are not getting the answers at the bottom of the page, you may not
have cleared the memory properly before you started.

4 In Australia a 10% GST is added to prices to determine the final selling price.

Increasing an amount by 10% is the same as multiplying the amount by 1.1. Place
1.1 in the calculator’s memory then determine the final price of each item.
A $32 book

B $3.20 ice cream

C $20 hair cut

D $260 camera

D $33 000 car

5 If you want to determine the amount of GST included in a price, divide the price

by 11. Use the calculator memory to determine the amount of GST in each price.
A $132 pair of jeans

B $38.50 movie ticket

C $5.72 bus ticket

D $11.55 takeaway lunch

Answers

1 The right hand screen has a value stored in the memory.
2

A 5.14

B 6.28

C 8.86

D 1.57

E 116.18

3 A 49.95

B 23.8

C 2.85 to 2 decimal places

4 A $35.20

B $3.52

C $22

D $286

E $36 300

5 A $12

B $3.50

C 52c

D $1.05