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