calculator use

Calculator Use

Calculator Use - Basic• When you take out the Casio fx-260 calculator, it will

automatically react to the light and you will normally see a “0” in the display panel along with the letters DEG. This means the calculator is in its default function for basic computations. If it does not display DEG and a “0,” you should press the key. This will return your calculator to the computation mode.

Calculator Use - Basic

Calculator Use - Fractions

• You can find the answers to fraction problems by using the a b/c key on the Casio fx-260 calculator. It is the first key in the second row of keys.


• Enter the fraction 5/6 by:1. Entering the number 52. Pressing the fractions - a b/c – button3. Entering the number 6

You should now see 5_| 6 on the display. This is how the Casio fx shows fractions.


• To enter the mixed number :1. Enter the whole number – 22. Press the fractions key3. Enter the numerator – 54. Press the fractions key5. Enter the denominator – 8Your display should now show 2_|5_|8.This is how the Casio fx shows a mixed number.

€

2 58


• Convert improper fractions to mixed numbers and vice versa

1. Enter the improper fraction 16/3 and press the fractions key.

2. Leave the mixed number on the screen.3. Press the shift key followed by the fractions

key.


• Try converting these fractions to their alternate forms:

1. 12/52. 20/53. 1 ¾4. 63 ½5. 125/3


• Try converting these fractions to their alternate forms:

1. 12/5

2. 20/5 43. 1 ¾ 7/44. 63 ½ 127/25. 125/3

€

2 25

€

4123


• To simplify or reduce a fraction to its lowest terms, you just enter the fraction and press the = key.

• Reduce:

€

424

€

1881

€

125500

€

3089


• Reduce:

€

424

→ 16

€

1881

→ 29 €

125500

→ 14

€

3089

→ 3089


• Adding, subtracting, multiplying and dividing fractions is as simple as using the fractions key to enter the fractions and using the operation keys as usual. Try:

€

14

× 39

=

€

25

+ 14

=

€

4 34

÷ 16

=

Calculator Use - Fractions• Adding, subtracting, multiplying and dividing fractions is as

simple as using the fractions key to enter the fractions and using the operation keys as usual. Try:

€

14

× 39

= 112

€

25

+ 14

= 1320

€

4 34

÷ 16

= 28 12


• To convert a fraction into a decimal1. Enter the fraction2. Press the equals (=) key3. Press the fractions key

Convert:

€

138

=

€

56

=


• To convert a fraction into a decimal1. Enter the fraction2. Press the equals (=) key3. Press the fractions key

Convert:

€

1 38

=1.375

€

56

= 8.333


• Try the worksheets on pages 124 and 128 in your book and check your answers against the answer key on BB.

• Do the GED Practice problems on pages 13-14 in the practice packet and submit your answers using the answer sheet on BB.

calculator use

Documents