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1
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 ➞a
b
/c ENTER .
BASIC ARITHMETIC
×
+
–
÷
▼
3
4
5
2
3
4
5
2
▼
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