Chapter 1: Number Sense
Section 2: Rational Numbers
³ Try-It!é on Your TI.83 Plus
Investigate how the calculator computes division expressions. Solve
To Do This
1. Solve without parentheses and
specify that you want the result in
fraction form.
2. Solve using parentheses and specify
that you want the result in fraction
form.
The calculator gives two different answers, depending on how you entered the expression.
Which one is the answer for the problem
Solve this problem by hand. Show all of your work here. Explain which answer from the
calculator is the desired answer and why.
Additional problems—Calculate the following problems by hand. Simplify your answers. Then
check your answers using the calculator. Remember to use the Order of Operation rules.
1
1
M
1.
+
=
3
4
3
5
P
3.
=
5
6
2
1
2
M
Q
5.
+
=
5
4
3
1
1
3
M
N
7.
+
6
12
4
Topics in Algebra 1
(continued)
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© 2001 Texas Instruments
Name
Date
Press
¥
¥
¥
1
2
2
3
1:4Frac
Í
£
¥
¤ ¥
1
2
£
¥
¤
2
3
1:4Frac
Í
1
2
P
?
2
3
2
5
M
Q
2.
3
6
M2
1
N
4.
=
2
5
1
3
Q
P
6.
8
16
1
3
M
N
8.
2
4
1
2
.
2
3
Display
(TI.83 Plus shown)
=
1
=
2
P (M3) =
Student Worksheet 1-15