Download User's Guide - Construction Book Express

Basic Math Operations
This calculator uses standard chaining
logic, which simply means that you
enter your first value, the operator (+,
-, x, Ö), the second value and then
the equals sign =.
A.
B.
C.
D.
3
3
3
3
+
x
Ö
2
2
2
2
=
=
=
=
5.
1.
6.
1.5
Percent Calculations
The Percent key % can be used for finding a given percentage of a number or
for working add-on, discount or division
percentage calculations.
355
250
25
100
x
+
Ö
15%
6¥5%
5%
50%
53.25
266.25
23.75
200.
The Percent key also allows you to
change percentages to decimals (e.g.,
2 5 % 0.25).
User’s Guide — 23