unit 2 math vocab

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Across
  1. 4. to compared to something or someone
  2. 5. that are the same distance from 0 on a number line but in opposite directions. Opposite numbers have the same numeral, but opposite signs.The opposite of a number is also called the additive inverse of that number.
  3. 8. a number that can be expressed as the fraction & or the opposite of & where a and b are whole numbers and b # 0. Rational numbers can also be expressed as a decimal.
  4. 9. numbers that are less than 0. They are located to the left of 0 on a horizontal number line and below 0 on a vertical number line.
  5. 10. height above or below a given level, often sea level.
  6. 11. a number's distance from O on the number line. Absolute value is never negative.
  7. 12. an example that opposes or proves that an idea or claim is incorrect.
Down
  1. 1. numbers that are greater than 0. They are located to the right of 0 on a horizontal number line and above 0 on a vertical number line.
  2. 2. a statement that something is true or false. A claim can be proven with reasons and evidence and can be disproven with counterexamples.
  3. 3. two numbers whose sum is zero. Opposite numbers form a zero pair.
  4. 6. the set of whole numbers and their opposites.
  5. 7. system of symbols or characters used to represent information.
  6. 8. to use as a sign, symbol, or example for something.