Last updated:
## 5 Math Riddles To Solve

Addition, subtraction, multiplication, or division = Math Riddles! Impress your family and friends with your problem-solving ability.

Add in a few clues, subtract a few wrong ideas, and multiply by laughter what do you have?

- None. If their names are in the phone directory, they do not have unlisted phone numbers!
- 7 eggs. The first person bought one half of his eggs plus one half an egg (3 1/2 + 1/2 = 4 eggs) This left him 3 eggs. The second person bought one-half of his eggs plus one half an egg, (1 1/2 + 1/2 = 2 eggs) leaving the man 1 egg. The last person bought one-half of his eggs plus one-half an egg, (1/2 + 1/2 = 1 egg) leaving no eggs.
- The same reason seven dollars is more than six. Because there is one more.
- David must give Robert another 20 water balloons, giving them each 60. Robert started with 30 water balloons and David with 90.
- 110 miles. (73037)