Topic 3 Word Work

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Across
  1. 5. the result of using greater numbers to estimate a sum or product
  2. 8. a rectangular model used to show part/part/whole relationships
  3. 9. a mathematical sentence that uses an equal sign to show that two expressions have the same value
  4. 10. a mathematical phrase that contains numbers and/or letters and at least one operation
Down
  1. 1. the result of using smaller numbers to estimate a sum or product
  2. 2. two operations that undo each other
  3. 3. to give a close guess
  4. 4. the answer to an multiplication problem
  5. 6. numbers numbers close in value to the original number but easier to estimate or calculate
  6. 7. the numbers that are multiplied together to get a product