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Math Fun: An Introduction to Cross Number Puzzles

Dive into the world of cross number puzzles across grade levels with Lyn Channey, Kristy Garvin, Karen Kissel, Barbara Wennerberg, and Amy Zell. Explore sorting shapes by numbers and engaging in addition, subtraction, and multiplication activities. Enhance your math skills with this interactive puzzle game!

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Math Fun: An Introduction to Cross Number Puzzles

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  1. An Introduction to Cross Number Puzzles Across the Grades Created by: Lyn Channey, Kristy Garvin, Karen Kissel, Barbara Wennerberg, and Amy Zell

  2. What is this?

  3. What could you do with this?

  4. When I point to you, click on the next number to sort these shapes. 1 2 4 5 6 7 3 8

  5. When I point to you, click on the next number to sort these shapes. 2 4 5 1 6 7 3 8

  6. When I point to you, click on the next number to sort these shapes. 2 4 5 1 6 7 3 8

  7. When I point to you, click on the next number to sort these shapes. 2 4 5 1 6 7 3 8

  8. When I point to you, click on the next number to sort these shapes. 2 4 5 1 6 7 3 8

  9. When I point to you, click on the next number to sort these shapes. 2 4 5 1 6 7 3 8

  10. When I point to you, click on the next number to sort these shapes. 2 4 5 1 6 7 3 8

  11. When I point to you, click on the next number to sort these shapes. 2 7 4 5 1 6 3 8

  12. When I point to you, click on the next number to sort these shapes. 2 7 4 5 1 6 8 3

  13. How many circles do I have?

  14. How many circles do I have? 4

  15. How many rectangles do I have? 4

  16. How many rectangles do I have? 4 4

  17. How many blue shapes do I have? 4 4

  18. How many blue shapes do I have? 4 4 4

  19. How many green shapes do I have? 4 4 4

  20. How many green shapes do I have? 4 4 4 4

  21. How many total shapes do I have? 4 4 4 4

  22. How many total shapes do I have? 4 4 4 4 8

  23. What number sentences could I make? 4 purples + 4 greens = 8 shapes 4 circles + 4 rectangles = 8 shapes 4 4 4 4 8

  24. This is a Kindergarten Cross Number Puzzle

  25. In First Grade it might look like this:

  26. Flip it in Second Grade to show subtraction:

  27. Expand it to show two-digit addition.

  28. What number sentence does this represent?

  29. 15 + 22 = 37

  30. Now let’s try it with regrouping.

  31. What number sentence does this represent?

  32. 26 + 15 = 41

  33. Array Model of Multiplication 4 2

  34. What does this represent? 4 2

  35. 2 x 4 = 8 4 2

  36. From here it moves to multi-digit multiplication. Array Model 10 5 20 2 15 X 20

  37. Here is what the cross number puzzle would look like alone.

  38. What number sentence does this represent?

  39. 15 x 22 = 330

  40. In Conclusion…

  41. Any Questions?

  42. Celebrate!You have just expanded your knowledge of Math!

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