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Basic arithmetic – Sharp EL-9900 User Manual

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Basic Keyboard/GENERAL MATHEMATICS USING THE SHARP EL-9900

Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.

Press to access the calculation screen.

1. Add 9 to 27 twice.

STEP 1:

Enter 27 by pressing 2

7 .

STEP 2:

Add by pressing the + key.

STEP 3:

Enter 9 by pressing 9 .

STEP 4:

Find the first sum by pressing the ENTER key.

STEP 5:

Add 9 again by pressing + 9 ENTER .

2. Multiply to . Then, convert to a decimal.

STEP 1:

Enter by pressing 3 a/b 4 .

STEP 2:

Multiply by pressing the

× key.

STEP 3:

Enter by pressing 5 a/b

2 .

STEP 4:

Find the product by pressing ENTER .

STEP 5:

Convert to an improper fraction by pressing

➞b/c ENTER .

STEP 6:

Convert to a mixed number by pressing

➞ab/c ENTER .

BASIC ARITHMETIC

Ч

+ –

ч

3

4

5

2

3

4

5

2