KILLA MATHS

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Across
  1. 1. Keep doubling 18
  2. 4. 13x9+500DIVIDEDBY21=
  3. 7. 33300-33000=
Down
  1. 2. A goggle
  2. 3. Press all the numbers
  3. 4. 13X22=
  4. 5. 288 DIVIDED BY 8=
  5. 6. 13X4=