Math vocabulary

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Across
  1. 2. The result of adding
  2. 6. A number that is added to another number
  3. 7. An approximate answer, to find an answer that is close to the exact answer
  4. 8. A process that determines which multiple of 10 a number is closest to
  5. 9. Property of addition that say changing the grouping of the addends does not change the sum
Down
  1. 1. To perform mathematical operations with numbers
  2. 3. Property of addition that says changing the order of the addends does not change the sum
  3. 4. To find the value of an algebraic expression by replacing the letters with numbers and then simplifying
  4. 5. to use place value to change numbers when adding or subtracting. For example to change 10 ones into 1 ten
  5. 10. Property of addition that says the sum of 0 and a number is the same as that number