Subtract and simplify, if possible.See Example 7.
Subtract.See Example 8.
Subtract.See Example 9.
Add or subtract and simplify, if possible.
67. 68. 3
2
3
a 14
5
3 b3
4
a 11
2
b2
1
8
3
3
8
3
1
4
4
1
4
4
5
9
2
1
6
2
5
6
1
3
8
103
1
2
210
2
5
380
1
6
17
1
4
442
1
8
429
2
3
140
3
16
129
3
4
9
9
10
6
3
10
8
7
9
3
1
9
3
3
4
2 1 5
7
8
6
1
2
2
2
3
5
1
2
3
4
5
2
2
5
3
1
4
4
1
6
1
1
5
291
1
4
289
1
12
140
5
6
129
4
5
TRY IT YOURSELF
221 88
35
64
112 49
9
32
437 63
6
23
674 94
11
15
95
4
7
23
5
6
84
5
8
12
6
7
58
4
11
15
1
2
47
1
11
15
2
3
41
2
5
6
3
20
21
5
6
8
3
10
32
2
3
7
1
6
19
11
12
9
2
3
- AIR TRAVEL A businesswoman’s flight left Los
Angeles and in hours she landed in Minneapolis.
She then boarded a commuter plane in Minneapolis
and arrived at her final destination in hours. Find
the total time she spent on the flights. - SHIPPING A passenger ship and a cargo ship left
San Diego harbor at midnight. During the first hour,
the passenger ship traveled south at miles per
hour, while the cargo ship traveled north at a rate of
miles per hour. How far apart were they at
1:00 A.M.? - TRAIL MIX How many cups of trail mix will the
recipe shown below make?
Trail Mix2 cups peanuts
cup sunflower seeds
cup raisinsA healthy snack–great for camping trips(^3) –
4
(^2) –
3
(^1) –
2
cup coconut
2 cups oat flakes
cup pretzels
(^1) –
3
(^1) –
4
(^2) –
3
(^5 15)
(^16 12)
(^1 12)
(^3 34)
APPLICATIONS
11 10
4
5
9 8
3
4
191
1
2
233
1
16
16
5
8
58
7
8
340
1
2
61
3
4
9
7
3
7
3
2
10
1
2
6 6
5
8
3
2
1
16
3
7
8
4
5
8
1
1
4
40
1
7
19
6
7
16
1
4
13
3
4
31
1
3
20
2
5
10
1
15
12
1
2
5
3
4
35
1
6
6
1
8
7
2
3
3.6 Adding and Subtracting Mixed Numbers 281