Rational Numbers Vocabulary

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12345678910111213141516171819
Across
  1. 3. The top number. It tells you how many "slices" or parts you currently have.
  2. 4. A decimal that eventually ends cleanly (like 0.25 or 1.125).
  3. 7. A messy decimal that goes on forever without ever repeating a pattern. You cannot write it as a simple fraction (Pi is the most famous example).
  4. 8. Whole numbers, their negative mirror images, and zero. No fractions or decimals allowed (..., -2, -1, 0, 1, 2, ...).
  5. 12. Any number you can write as a neat, clean fraction. If it is a decimal, it either eventually stops or repeats a predictable pattern (like 0.75 or 0.333...).
  6. 15. A top-heavy fraction where the top number is bigger than or equal to the bottom. It represents 1 whole or more (like 5/3).
  7. 16. Shrinking a fraction down so the top and bottom numbers can't both be divided by the same whole number anymore. For example, shrinking 4/8 down to its lowest term of 1/2.
  8. 18. A whole number paired up with a proper fraction (like 735).
  9. 19. Working backward from a perfect square. It answers the question, "What number multiplied by itself gives me this result?" The root of 16 is 4.
Down
  1. 1. The bottom number. It tells you how many slices make up one whole pizza.
  2. 2. A number you get by multiplying a whole number by itself. For example, 25 is a perfect square because 5 times 5 is 25.
  3. 5. Breaking a number down into a multiplication problem using only prime numbers.
  4. 6. A decimal where a digit (or a specific chunk of digits) loops forever without stopping.
  5. 9. Any number you can pinpoint on a standard number line, whether it's a clean whole number or a messy decimal.
  6. 10. The smallest shared bottom number you can find for two different fractions. You need this to easily add or subtract them.
  7. 11. The entire "family tree" of numbers we use in everyday life. It includes every single number type listed below.
  8. 13. Zero and all positive counting numbers (0, 1, 2, 3...).
  9. 14. Just the numbers you naturally use to count things, starting at one (1, 2, 3...).
  10. 17. A "normal" fraction where the top number is smaller than the bottom. It represents less than 1 whole (like 3/4).