Test PracticeT
C 37. OPEN ENDED A board with a length of 3 _^78 feet needs to be cut from a
5 _^12 -foot existing board. Write and solve a subtraction problem to find
the amount of wood that would be left after the cut is made.
- CHALLENGE A string is cut in half. One of the halves is thrown away. One
fifth of the remaining half is cut away and the piece left is 8 feet long.
How long was the string initially? Justify your answer. - E WRITE MATH The fence of a rectangular garden is constructed from
12 feet of fencing wire. Suppose that one side of the garden is 2 _ 125 feet long.
Explain how to find the length of the other side. - SCHOOL Kai did ^1
5
of her homework in class and ^1
3
more on the bus. What
fraction of homework does she still need to do? (Lesson 2C)
Add or subtract. Write in simplest form. (Lesson 2C)
- _^1
5- ^1
4
44. ^1
3- ^1
6
45. ^4
9- ^2
7
46. ^1115 - _^3
20
- ^2
- ^1
- ^1
- CLUBS The pep club made spirit buttons. Blue Red
83 ft ^38 ft
They used blue and red ribbons. How much
total ribbon did they use? (Lesson 2A) - The distance from home plate to the
pitcher’s mound is 60 feet 6 inches and
from home plate to second base is 127
feet 3 _^3
8
inches. Find the distance from
the pitcher’s mound to second base.
A. 68 ft 3 _^1
4
in.
Home plate
2nd base2nd base
Pitcher’s
mound
Pitcher’s
mound
B. 67 ft 8 _^3
4
in.
C. 67 ft 2 _^5
8
in.
D. 66 ft 9 _^3
8
in.
- A recipe for party mix calls for 4 ^3
4
cups
of cereal. The amount of peanuts needed
is 1 ^2
3
cups less than the amount of cereal
needed. How many cups of peanuts and
cereal are needed?
F. 3 _^1
12
cups
G. 6 _^1
2
cups
H. 7 _^5
6
cups
I. 8 _^1
2
cups
156 Rational Numbers
139_156_C3L2_895130.indd 156 12/31/09 12:38 PM