7th Grade Math

(Marvins-Underground-K-12) #1

Test PracticeT


132 Rational Numbers

C 43. OPEN ENDED Write a fraction that is equivalent to a terminating decimal
between 0.5 and 0.75.


  1. CHALLENGE Fractions in simplest form that have denominators of
    2, 4, 8, 16, and 32 produce terminating decimals. Fractions with
    denominators of 6, 12, 18, and 24 produce repeating decimals. What
    causes the difference? Explain.

  2. E WRITE MATH The value of pi (π) is 3.1415926.... The mathematician
    Archimedes believed that π was between 3 71 and 3 ^1071. Was Archimedes
    correct? Explain your reasoning.
    46. Tanya drew a model for the fraction _^46.


Which of the following decimals is equal
to _^46?
A. 0.666
B. 0.

6
C. 0.667
D. 0.66

7


  1. Use the table that shows decimal and
    fraction equivalents.


(^) Decimal Fraction



  1. − 3 _^39

  2. − 4 _^49

  3. − 5 _^59

  4. − 6 _^69


Which fraction represents 0.

8?
F. _^45

G. _^8099


H. _^56


I. _^89



  1. The sign shows the lengths of four
    hiking trails.


Which trail length is equivalent to 1.

3?
A. Forest Lane
B. Lakeview
C. Mountain Climb
D. Sparrow Stroll


  1. Zoe went to lunch with a friend. After
    tax, her bill was $12.05. Which mixed
    number represents this amount in
    simplest form?
    F. 12 _^12


G. 12 _ 201


H. 12 _ 105


I. 12 _ 1005


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