I
I
I
key adds
or
subtracts
the
number
in
the means
your
calculator works the same
display
to,
or
from,
the
memory contents. way you think
or
wri te a problem.
I
MR
1 Depressing
the
IMR
1 key recalls
the
Notice that
the
display shows each new
number
in
the
memory
to
the dis- numerical entry
as
you depress
the
num-
play. This recalled number may ber
entry
keys and the result of
the
pre-
be used
in
subsequent arithmetic vious arithmetic calculation when you
operations. depress an arithmetic function key or
[}J9 Depressing
the
~
key clears answer key.
the
memory. Addition, Subtraction,Multiplication and
Square Root Key Division
r-r1 Depressing the 1
-r
1 key causes Addition, subtraction, multiplication, and
the
calculator
to
display
the
square division operations may be itltermixed,
root
of
the displayed number.
or
chained, as shown below:
Change Sign Key
GEl
Depressing
the
1
+/-1
key
chan~
(5 + 6) J-8
~
7.6666666
,the sign
of
the displayed number. Keyboard Entry Display
Percent Key 5 5.
00 The
00
key operates just like
the
[fJ6
equal key, 0
,when
multiplying
00
11.
6.
and dividing
except
that
it causes 7 7.
the
last
entry
to
be divided by
100
El
77.
.before
the
desired arithmetic oper- 8 8.
ation
is
performed.
I±l
69.
Register Exchange
Key
9
9.
B Depressing
the
EI key interchang-
El
7.6666666
es
the
contents of the display and
out
re-entering
the
numbers each time. multiply each item
in
the
recipe by
7/4
or I
For example, grocery items with values 1.75, as follows:
of 1.69+2.98 +
2.98
+
2.98
+ 0.49
~
11.12 6 cups flour x 1.75
~
10_5
cups flour
would be added as follows: 1.5
tsp
salt x 1.75
~
2.625
tsp salt
Keyboard Entry Display
2cupsmilkxl.75
~
3.5cupsmilk
1.69 1.69 Keyboard Entry Display
[±j2
.98
2.98
6 6.
4_67 o 1.75 1.75
~
7.65
G 10.5
C±J
10.63
1_5
1.5
.49
0.49
G 2.625
11.12
G 2
:2.
Automatic Constant G
3.5
The
automatic
constant
is
another
time
saving feature. This feature enables you
In
all
instances, the constant
is
retained
j!
to
add, subtract, multiply
or
divide by until a different number
is
entered after
the
same nlllmber repeatedly
without
re-
an arithmetic function key
is
depressed.
entering the number for each new calcula- Percentage Operations
tion. The number entered after
the
last Percentage calculations are performed
arithmetic function key depressed
is
ai-
easily with
the
24K calculator. For ex-
ways saved as the constant (addend, ample,
to
calculate 1.5% monthly charge
subtrahend, multiplier,
or
divisor). The on a
department
store
account
balance of
constant
function
is
the last arithmetic $340.00. make
the
following entries:
function key depressed before depressing Keyboard Entry Display
the G key. To perform multiple 340 340.
operations with
the
saved
constant,
enter
. 0 1.5 1.5
Repeat Operations a new augend, minuend, multiplicand or
the working register_
!.ill
5.1
The repeat operation capability
of
your
I dividend, and depress
the
B key for
Basic Calculations Rockwell 24K
is
a convenient feature
that
As
another
example, suppose you have 1
an answer.
Your Rockwell 24K ·performs arithmetic enables
you
to add, SUbtract, multiply
or
answered
57
of
65
examination questions
For example,
to
increase a recipe which
calculations with algebraic logic. This divide a series
of
identical numbers with- correctly. What
is
your
percentage of I
normally serves four people
to
serve seven, correct answe
rs?
.6
7 8 9
