Texas Instruments TI-34 II Teachers Guide - Page 54
Order of Operations
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Order of Operations 4 Keys These numbered paragraphs provide explanations for the corresponding numbered keys on the illustration below. 1. D opens a parenthetical expression. 2. E closes a parenthetical expression. Notes • The examples on the transparency masters assume all default settings. • The transparency master showing the Equation Operating System (EOSé) demonstrates the order in which the TI-34 Û completes calculations. • Operations inside parentheses are performed first. Use D E to change the order of operations and, therefore, change the result. Example: 1 + 2 x 3 = 7 (1 + 2) x 3 = 9 1 2 © 1999 TEXAS INSTRUMENTS INCORPORATED TI-34 Û: A Guide for Teachers 48
© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI
-
34
Û
: A Guide for Teachers
48
Order of Operations
4
Keys
These numbered paragraphs provide
explanations for the corresponding numbered
keys on the illustration below.
1.
D
opens a parenthetical expression.
2.
E
closes a parenthetical expression.
Notes
•
The examples on the transparency
masters assume all default settings.
•
The transparency master showing the
Equation Operating System (EOS
é
)
demonstrates the order in which the
TI
-
34
Û
completes calculations.
•
Operations inside parentheses are
performed first. Use
D
E
to change the
order of operations and, therefore,
change the result.
Example:
1 + 2 x 3 = 7
(1 + 2) x 3
= 9
2
1