πagarwalmath · 3rd grade · Common Core MP.1
🚀 Challenge puzzles
Make sense of problems and keep at them (puzzles that need thinking, not a known method)
Name: ______________________Date: ____________
1I think of a number. I multiply it by 2, then add 9. Now I have 21. What number did I start with?
Answer: ______________
2The scale balances. How much does one 🍎 weigh?
Answer: ______________
3Every row, column, and diagonal makes 15. What number goes in the bottom middle box?
Answer: ______________
4The scale balances. How much does one 🍊 weigh?
Answer: ______________
5I think of a number. I multiply it by 3, then add 6. Now I have 33. What number did I start with?
Answer: ______________
6The scale balances. How much does one 🍌 weigh?
Answer: ______________
7I think of a number. I multiply it by 5, then add 3. Now I have 38. What number did I start with?
Answer: ______________
8The scale balances. How much does one 🍊 weigh?
Answer: ______________
9I think of a number. I multiply it by 2, then add 3. Now I have 19. What number did I start with?
Answer: ______________
10I think of a number. I multiply it by 2, then add 1. Now I have 17. What number did I start with?
Answer: ______________
11I think of a number. I multiply it by 3, then add 6. Now I have 30. What number did I start with?
Answer: ______________
12I think of a number. I multiply it by 5, then add 6. Now I have 26. What number did I start with?
Answer: ______________
Answer key: Challenge puzzles
- 1. 6
- 2. 5
- 3. 9
- 4. 3
- 5. 9
- 6. 6
- 7. 7
- 8. 2
- 9. 8
- 10. 8
- 11. 8
- 12. 4
Practice this lesson online with games that adjust to your child: agarwalmath.com/math/3rd-grade/challenge-3