Number Foundations & Rational Numbeers

1234567891011121314151617181920
Across
  1. 4. The value of a digit based on where it is in a number.
  2. 5. To write a fraction in its lowest terms without changing its value.
  3. 9. The number that is multiplied repeatedly in a power.
  4. 11. Writing a number using words.
  5. 13. A zero that keeps other digits in the correct place.
  6. 14. Writing a number as the sum of each digit multiplied by a power of ten.
  7. 16. Fractions that have the same value even though they look different.
  8. 17. To replace a number with the closest value at a chosen place.
  9. 18. How exact or detailed a measurement or number is.
  10. 20. A line used to show the position of numbers in order.
Down
  1. 1. The largest factor shared by two or more numbers.
  2. 2. The symbol that separates whole numbers from decimal numbers.
  3. 3. A number made by multiplying a whole number by itself.
  4. 6. Any number that can be written as a fraction.
  5. 7. A number or ratio out of one hundred.
  6. 8. A number that, when multiplied by itself, gives the original number.
  7. 10. Writing a number using digits.
  8. 12. A way to write very large or very small numbers using powers of ten.
  9. 15. A positive or negative whole number, including zero.
  10. 19. A small number that tells how many times a base is multiplied by itself.