Double It or Taking 1/2

One person picks a number and asks the other to double it. 

  • Round 1: You can start off easy by asking double 3, 9, 12, 15, 35. 
  • Round 2: Then make it harder 18, 34, 56, 73.
  • Round 3: Double and then add 5
  • Round 4: Double then subtract 3

Next try taking 1/2 (half)

  • Round 5: What is 1/2 of 8, 10, 20, 24?
  • Round 6: What is half of 36, 40, 68, 84?
  • Round 7: What is half of 56, 74, 96, 104?
  • Round 8: What is 1/2 of 35, 41, 73, 87? 
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