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Section 1: General Operations 23
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If the decimal points light while the reader/writer motor is running and then go out, the battery is almost discharged.
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Operating the calculator for more than 2 to 5 minutes after this low power indication first occurs may result in
wrong answers. The battery pack must be replaced or recharged by connecting the calculator to the battery charger.
Be sure to turn off the calculator before connecting the recharger to the calculator.
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Also, be sure to start with at least partially charged batteries before using the card reader/writer.
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Keying in Large and Small Numbers
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You can key in numbers having power of ten multipliers by pressing EEX (enter exponent). For example,
key in 15.6 trillion (15.6 × 1012), and multiply it by 25.
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Press
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See Displayed
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Comment
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15.6 EEX
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12
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15.6 × 1012
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ENTER
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1.56 × 1013
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25 ×
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Answer
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Exact Powers of Ten
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You can save time when keying in exact powers of ten by pressing EEX and then pressing the desired power of ten.
For example, key in 1 million (106) and divide by 52.
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Press
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See Displayed
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EEX 6
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ENTER
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52 ÷
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Small Numbers (Negative Exponents)
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To key in negative exponents, key in the number, press EEX, press CHS to make the exponent negative,
then key in the power
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To key in a negative number (e.g., —15.6 × 1012 you would press CHS before pressing EEX.
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