Mystery Number Jeopardy
During a math review game, I recently had a mystery number jeopardy section. The students loved the challenge and worked as a team to find the answer. I displayed each riddle and gave the students 30 seconds to complete the challenge. This was currently for a third grade class I was teaching. Feel free to use the riddles below.
100:
- “I am a two digit number”
- “I only have even digits.”
- “My sum is 10.”
- “The digit in the ten’s place is six more than the digit in the one’s place.”
- What is the mystery number?
- Answer 82
200:
- I am a two digit number.
- I am an odd number.
- The sum of my digits is 8.
- Both the digits are odd.
- What is the mystery number?
- Answer: 71
300:
- I am a three-digit number.
- Two of my digits are odd and one is even.
- 10-8=the digit in the one’s place
- The digit in the tens place is one more than the unit in the ones place
- The sum of all the three digits is 10.
- Answer: 532
400:
- I am a three-digit number.
- Two of my digits are odd and one digit is even
- The digit in the ones place and tens place combined is 9.
- The sum of the three digits is 18.
- Answer: 927
500:
- I am a three-digit number.
- All my digits are even
- The digit in the ones place is half of the digit in the tens place
- The digit in the tens place is doubled than the digit in the ones place
- The digits in the hundreds place is doubled than the digit in the tens place
- The sum of all the digits is 14
- Answer: 842