Missing Number Puzzles Questions

21. Complete the four missing numbers?
  What is the next number?
Answer
Ans =
3       3
6       8
Start at the bottom left corner and repeat the numbers 38496 working up the first columns and down the second, etc.
22. What number should replace the question mark?
  What is the next number?
Answer
30, 26.
There are two alternate sequences. Add 5 starting at 1. Subtract 5 starting at 50.
123456789101112131415


Page 11 of 15