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User’s GUide — 7
GETTinG STaRTEd
You may want to practice getting a feel for your calculator keys
by reading through the key denitions and learning how to enter
basic feet-inch-fractions and metric, how to store values in
Memory, etc., before proceeding to the examples.
Order of Operations
Unlike other Calculated Industries calculators, which use the
Chaining Method of Operations, this calculator uses the Order
of Operation Method.
● Chaining Method (“as entered”): 10 + 4 x 5 = 70
● Order of Operations: 10 + 4 x 5 = 30
The Order of Operations method of computing is based on the
following order of precedence:
1) Expressions inside of parentheses
2) Single-variable functions that perform the calculation
and display the result immediately (trig functions, square,
square root, x
y
, percent, reciprocal, angle conversions)
3) Multiplication and division
4) Addition and subtraction
5) Equals (completes all operations)
If you need to calculate using the Chaining Method, you can
change this in your calculator Preference Settings.
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