6th grade Math vocabulary

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Across
  1. 3. please excuse my dear aunt-sally
  2. 5. 1/4
  3. 7. 6 • 4
  4. 8. 2x - y = -6
Down
  1. 1. 1 + a
  2. 2. 9 ÷ 2
  3. 4. 13.76
  4. 6. 4 to the power of 3