Which number is missing: 20 - ? = 5 + 5 + 5 + 5
  • 1
  • 0
  • 2
  • 20
Which number is missing: 18 = 4 + 6 + ?
  • 6
  • 17
  • 8
  • 15
Which number is missing: 20 - 4 = 12 + ?
  • 4
  • 6
  • 12
  • 20
Which number is missing: 8 = ? + 5
  • 2
  • 3
  • 5
  • 8
Which number is missing: 5 = 19 - ?
  • 14
  • 13
  • 12
  • 11
Which number is missing: 20 = 17 + ?
  • 6
  • 5
  • 4
  • 3
Which number is missing: 15 - 11 = 2 + ?
  • 2
  • 3
  • 4
  • 5
Which number is missing: 2 + 3 + 6 = 19 - ?
  • 19
  • 9
  • 11
  • 8
Which number is missing: 8 - ? = 2
  • 2
  • 8
  • 4
  • 6
Which number is missing: 3 + 4 = 10 - ?
  • 4
  • 3
  • 7
  • 10
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