Learning Resources LER 0068 User Manual

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© Learning Resources, Inc., Vernon Hills, IL (U.S.A.)

Learning Resources Ltd., King’s Lynn, Norfolk (U.K.)
Please retain our address for future reference.
Made in China. LPK0058-GUD

LER 0058/50

®

B A S I C

Calculator Manual

Int r o d uc t io n

This manual describes how to use the dual powered
Basic Calc-u-vue calculators. The manual is
organized so that instructions for getting started and
basic arithmetical operations are presented in the
beginning sections with many user friendly examples
and notes.

The Basic Calc-u-vue has percent and square root
keys; constants for addition, subtraction and
multiplication; memory; and reciprocals. This three­color keyboard has a large easy-to-read LCD display
with an eight-digit floating decimal point. Included is a
built-in stand to angle the unit for non-glare viewing.

Use r I n fo r ma t io n

Bas i c O pe r at i on s

Example Keystroke Display

Add/Subtract

8.42 – 9.3 + 13.65 8.42 – 9.3 + 13.65 = 12.77

Multiply/Divide

3x6÷9 3 x 6 ÷ 9 = 2

Square Root

√784 784 √ 28

To clear all calculations, including memory, press ON/C .
To clear all calculations, except memory, press CE/C
twice. To clear an incorrect entry, press CE/C once. To
enter a negative number, enter the numbers, then press
+/- . To change a negative number to a positive, press
+/- . Examples of the basic functions are shown on the
following pages.

Caution: Do not expose the Basic Calc-u-vue to direct sunlight
for long periods or store in an area of excessive temperatures.
Leaving the calculator on a heated surface for an extended
time will effect the operation of the Student
Calc-u-vue.

1

Percent

10% of 250 250 x 10

$250+10% tax 250 + 10

$250-10% discount 250 – 10

Reciprocal

1/4 4 ÷ = 0.25

% $25

% $275

% $225

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Example Keystroke Display

Example Keystroke Display

Constants

Addition 3+2 3 + 2 = 5

6+2 6 = 8

12+2 12 = 14

(+2 is a constant)

Subtraction 10–5 10 – 5 = 5

8–5 8 = 3

40–5 40 = 35

(–5 is a constant)

Constants

Multiplication 4x2 4 x 2 = 8

4x5 5 = 20

12x4 12 = 48

(x4 is a constant)

Memory

Memory Recall/ Press M
Memory Clear information in memory; Press

R

once to recall

C

twice to clear information in
memory.

3

Memory (cont.)

Memory Add
(5.62x3)+ M

M+ (7.98-6.6) 7.98 – 6.6 M+ 1.38

Memory
(75+35%)- M

R

R

M

5.62 x 3 M+ 16.86

C

C

R

M

C

R

R

M

75 + 35 % M+ 101.25

C

C

18.24

Subtract M­(63+15%) 63 + 15

R

M

C

% M- 72.45

28.8

4

M

M

M

M

M

M

1 Open the battery cover

2 Remove the battery

3 Replace the battery


(" + " positive side up)

1.5V : G10 x 1 pc.

4 Close the battery cover

Replacement battery for model LER0058

1 Open the batter y cover

2 Remove the battery

4 Close the battery Cover

3 Replace the battery


("+" positive side up)

 G10 X 1PC

For Model LER0050 Replacing Battery

Bas i c C al c -u - vu e
Cal c u l at o r L i mi t ed W a r ra n ty

The Basic Calc-u-vue calculator is warranted to the
original purchaser against detective materials or
workmanship for one year from the dated of purchase.
The warranty is effective only upon presentation or
provable receipt of purchase.

Warranty is void of the product has been damaged by
accident unreasonable use, neglect improper service
or other causes not arising from defects in materials
and/or workmanship.

The manufacturer’s warranty is limited to replacing the
Basic Calc-u-vue calculator when the unit is returned
with proof of purchase and $2.00 to cover shipping
and handling to: Learning Resources

380 N. Fairway Drive
Vernon Hills, IL 60061

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