Texas Instruments TI-83-Plus Guide Book

Chapter 1: Number Sense Name
Section 1: Integers Date
Topics in Algebra 1 © 2001 Texas Instruments Student Worksheet 1-4
³
Try-It!
é
on Your TI
.
83 Plus or TI
.
73
Learn to use the subtraction key (¹), the negation key (Ì), and the absolute value function
(
abs(
).
Use the negation and the subtraction keys to calculate
M
5
N M
4.
To Do This Press Display
(TI
.
83 Plus shown)
1. Exit the Topics in Algebra 1
application and clear the Home
screen.
y
l
á
EXIT
â
:
2. Calculate
M
5
N M
4.
Note
: The negation key (Ì) and the subtraction key
(¹) are different.
Ì
5
¹ Ì
4
Í
Enter
M
5
N M
3
Q M
2, first without using parentheses and then using parentheses.
To Do This Press Display
(TI
.
83 Plus shown)
1. Calculate
M
5
N M
3
Q M
2.
Note
: On the TI
-
73, notice the difference between
the
x
variable key (
I
) and the multiplication
key (
M
).
Ì
5
¹ Ì
3
M
Ì
2
Í
2. Calculate
M
5
N
(
M
3
Q M
2).
Ì
5
¹
D
Ì
3
M
Ì
2
E
Í
3. Calculate (
M
5
N M
3)
Q M
2.
D
Ì
5
¹ Ì
3
E
M
Ì
2
Í
The calculator uses the Order of Operations rules, which say that multiplication and division are
performed from left to right, and then addition and subtraction are performed from left to right.
Notice that multiplication was calculated before subtraction in the expression
M
5
N M
3
Q M
2. Notice
that the expression
M
5
N
(
M
3
Q M
2) has the same answer.
The calculator performs operations inside the parentheses before operations outside the
parentheses. Notice that the expression (
M
5
N M
3)
Q M
2 has a different answer than the expressions
M
5
N M
3
Q M
2 and
M
5
N
(
M
3
Q M
2).

Texas Instruments TI-83-Plus Specifications

General

Brand	Texas Instruments
Model	TI-83-Plus
Category	Calculator
Language	English