Equivalent Sums in Math

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Across
  1. 5. the more simple way to solve the problem
  2. 7. the wrong number
  3. 8. the correct answer
  4. 9. showing the problem to better understand
Down
  1. 1. same number
  2. 2. the number we are staying within
  3. 3. taking numbers away from each other
  4. 4. the name of the numbers being added together
  5. 6. adding numbers together