Basic Arithmetic; Calculator Activity - Sharp EL-W516B Operation Manual

Teaching activities for the classroom

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OBJECTIVE: To perform basic operations by developing a sequence of numbers.

Performing a specified operation repeatedly can generate a sequence of

numbers. For example, if you start with the number 4 and add 2

repeatedly you will generate the sequence

1. Add 13 to 54 twice:

STEP 1: Enter 13 by pressing

STEP 2: Add by pressing

STEP 3: Enter 54 by pressing

STEP 4: Find the first sum by pressing

STEP 5: Add 13 again by pressing

2. Subtract 9 from 32 once.

STEP 1: Enter 32 by pressing

STEP 2: Subtract by pressing

STEP 3: Enter 9 by pressing

STEP 4: Find the difference by pressing

3. Multiply -2 by 5 three times.

STEP 1: Enter –2 by pressing

STEP 2: Multiply by pressing

STEP 3: Enter 5 by pressing

STEP 4: Find the first product by pressing

STEP 5: Multiply by 5 again by pressing

STEP 6: Multiply by 5 a third time by pressing

BASIC ARITHMETIC

6 ,

, 8 ,



followed by

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