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Number Calculation and Whiteboard Task

A series of number calculations to be performed and written on a whiteboard. Engage in mental math and problem-solving skills.

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Number Calculation and Whiteboard Task

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  1. Think of a number. Double it. Add 10. Halve it. Take away your original number. Write the answer on your whiteboard.

  2. 5 Write the answer on your whiteboard.

  3. n 2n + 10 n + 5 n + 5 - n 2n Think of a number. Double it. Add 10. Halve it. Take away your original number. Write the answer on your whiteboard.

  4. Think of a number. Add 1. Double it. Take away 3. Add your original number. Add 7. Divide by 3. subtract your original number. Write the answer on your whiteboard.

  5. 2 Write the answer on your whiteboard.

  6. x 2 3x + 6 3x - 1 2x + 2 x + 1 x + 2 2x + 2 - 3 2x - 1 Think of a number. Add 1. Double it. Take away 3. Add your original number. Add 7. Divide by 3. subtract your original number. Write the answer on your whiteboard.

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