Casio FX-82AU PLUS Manuale Utente
23
Fix, scientific notation and norm
Remember!
When you want to cancel fix or scientific notation choose Norm2. Refer to page 5 for fix
and scientific notation procedures.
When you want to cancel fix or scientific notation choose Norm2. Refer to page 5 for fix
and scientific notation procedures.
1. Express 65 123 in scientific notation with 2 significant figures.
2. Express
3
6.8 10
´
without using scientific notation. (Hint! Press 6.8 OK3
then set the calculator to Norm2.)
3. Express
6
3.25 10
´
without using scientific notation.
4. Write 4.6349 correct to 2 decimal places.
5. Determine the value of 16.8731 correct to 1 decimal place.
5. Determine the value of 16.8731 correct to 1 decimal place.
6. Find the value of 175 correct to 2 decimal places.
7. Calculate the value of
2
3
8.61 10
9.356 10
´
´
´
in scientific notation with two
significant figures.
8. What is the value of 8.3 2.5
´
? Express your answer as a decimal.
9. Find the value of
(
)
2
11.75 correct to two decimal places.
10. What is the value of
5
4
4.1 10
(8.75 10 )
´
¸
´
correct to the nearest whole number?
11. The calculation
(
)
3
1.07
$1260
´
gives the value of an investment in 3 years time.
Calculate the value of the investment in 3 years time correct to the nearest cent.
12. Calculate the value of 2 rh
p
when r = 17.6 and h = 11.8. Express your answer
correct to 1 decimal place.
13. The screen capture shows a calculation.
A How do you know the calculator is set in scientific notation, not Norm1 or 2?
B How many significant figures is the calculator set to display?
C Express the answer without any rounding or scientific notation.
B How many significant figures is the calculator set to display?
C Express the answer without any rounding or scientific notation.
Answers
1
1
4
6.5 10
´
2 6800
3 3 250 000
4 4.63
5 16.9
6 13.23
7
6
8.1 10
´
8 20.75
9 138.06 10 5
11 $1543.55
12 1304.9
13 A SCI is at the top of the screen B 2
C 31 102 015
© Sue Thomson and Shriro Australia PTY Limited. This page may be photocopied for classroom use.