Mental Math

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Across
  1. 1. A fraction with numerator 1 is called ____ fraction.
  2. 3. How many quarters are needed to make a whole?
  3. 6. Any number which has factors as 1 and itself is called ____
  4. 7. Which is the smallest prime number?
  5. 8. Fractions with same denominators are called ____ fractions.
Down
  1. 2. How many factors does 4 have?
  2. 4. ____ is a factor of every number.
  3. 5. A ____ has no end points.
  4. 6. 2/3 is an example of a _____ fraction.
  5. 7. Two prime numbers whose difference is 2 are called ____ primes.