Texas Instruments TI15TK Teacher Guide - Page 48
Order of Operations, Multiply, Parentheses
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Order of Operations 1 + 2 x 3 = Press Display 1 T 2 V 3 ® 1Û2Ý3Ú 7 (1 + 2) x 3 = Press Display X 1 T 2 Y V 3 ® Å1Û2ÆÝ3Ú 9 Add T Multiply V Parentheses X Y © 2000 TEXAS INSTRUMENTS INCORPORATED TI-15: A Guide for Teachers 41
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© 2000 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
41
Order of Operations
1 + 2 x 3 =
Add
T
Press
Display
Multiply
1
T
2
V
3
®
1Û2Ý3Ú
7
V
Parentheses
X
Y
(1 + 2) x 3 =
Press
Display
X
1
T
2
Y
V
3
®
Å1Û2ÆÝ3Ú
9