And if you are a masochist, you can try some of the Common Core test questions here:
http://www.testprepreview.com/common-core-test-prep.htm
1. Convert 0.2 into a fraction.
a. 1/5
b. 11/50
c. 2/9
d. 2/7
2. What is the decimal expansion of 5/6?
a. 0.(56)
b. 0.83
c. 0.56
d. 1.2
Answers and Explanations
1. C: When converting a decimal whose value repeats itself indefinitely, write the repeating digit or digits in the numerator. In this problem, the repeating digit is 2. In the denominator, place 9 for every repeating digit, then reduce the fraction to lowest terms. In this problem a single 9 is in the denominator, so the answer is 2/9. Another example is 0.‾24= 24/99=8/33
2. B: 5/6 can be rewritten as 5÷6=0.83 ?
As you can see, the answer to question 1 is nonsense (real answer is, of course, a). The answer to 2 although mathematically accurate is in the form of a question.