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Radio Shack BLACKJACK 21 Owner's Manual page 3

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13—8—
0
13 □ 8 0
5.
5—8—
5
B
-3.
NOTE: The second number becomes the constant.
12-r6=
012 0 6 0
2.
36-P5=
36 0
6.
NOTE: The second number becomes the constant.
4X3—
0 4 0 3 0
12.
4X6=
60
1
24.
NOTE: The first number becomes the constant.
4
NOTE: The Calculator will "figure" the square root of a negative
number-which of course is an invalid operation. (Actually
it determines the square root of the positive number of
that number and displays it with a negative sign.)
Pressing
CE
key will clear the overflow indicator "E" (except
after attempting division by zero), Also, use | CE | key to clear
incorrect number entries. If you press the wrong function key,
just press the correct one and continue your calculation. Press
[~C~] to clear all pending calculations and display.
5

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