BODMAS

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Across
  1. 1. combination of numbers, variables and symbols
  2. 4. Minus, Less, Difference, Decrease
  3. 6. Quotient, Goes Into, How Many Times
  4. 7. rule for order of operations
Down
  1. 2. contains an equal sign
  2. 3. Multiply, Product, By, Times
  3. 5. Add, Sum, Plus, Increase, Total