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# Magical Math Minds Janie Ruddy

Magical Math Minds Janie Ruddy. Learn to use amazing, astounding, and astonishing prediction power to decrypt and decipher the rules of divisibility. Click on the magician’s wand to proceed!. Click the wizard to learn more.

## Magical Math Minds Janie Ruddy

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### Presentation Transcript

1. Magical Math MindsJanie Ruddy Learn to use amazing, astounding, and astonishing prediction power to decrypt and decipher the rules of divisibility. Click on the magician’s wand to proceed!

2. Click the wizard to learn more. DivisibilityDef: able to be divided with no remainder. Can be put into groups with equal amounts without any left-overs.

3. Work the two problems at your desk. When you are finished we will check them for accuracy. 3671 5 1245 5 What do you notice after solving the two equations? Touch the wizard to see if you are correct.

4. The problem where the dividend ended in a 5 was also evenly divisible by 5. 734 r. 1 259 3671 5 1245 5

5. Below are some numbers. Determine which numbers belong in the crystal ball. Numbers that you can ‘see’ are is divisible by five belong inside the crystal ball. Click the wizard when you are done. 145 6025 723 846

6. How did y0u do? Click on the wizard if you want to learn more math tricks. 145 723 846 6025

7. There are more divisibility rules for other numbers by which you divide. Touch the number to be transported to that lesson. 2 10 3 9 4 8 6

8. All of these numbers are evenly divisible by two. Use your calculator to prove it. 86 124 798 2486 7420 What do all of these numbers have in common. Find the magic rule you need to know to decide if a number is evenly divisible by two. Click on the wizard if you need a hint.

9. 111 593,174 What is your prediction? Once you have decided which numbers you think will be divisible by three, click tocheck your prediction. 478 126 4267 Divisible by 3? ?

10. 111 593,174 Click to check your predictions. 478 126 4267 Yes Divisible by 3? ? No

11. There are more divisibility rules for other numbers by which you divide. Touch the number to be transported to that lesson. 2 10 3 9 4 8 6

12. All of these numbers are evenly divisible by four. Use your calculator to prove it. 124 744 612 2004 3420 2408 What do all of these numbers have in common. Find the magic rule you need to know to decide if a number is evenly divisible by four. Click on the wizard if you need a hint.

13. 40 / 4 = 10 so 240 can be divided by 4 75 / 4 = 18 r.1 so it cannot be divided by 4

14. YES NO YES YES NO

15. YES NO Click the wizard to try some more. YES YES NO

16. YES NO Click the wizard to try some more. YES YES NO

17. YES NO Click the wizard to try some more. YES YES NO

18. YES NO Click the wizard to try some more. YES YES NO

19. Click the wand when you are done . YES NO Click the wizard to try some more. YES YES NO

20. There are more divisibility rules for other numbers by which you divide. Touch the number to be transported to that lesson. 2 10 3 9 4 8 6

21. Click the wizard when you are ready to move on.

22. 2052 / 3 = 684 4103 = 1267 r. 2 2+0+5+2 = 9, 9 is a math fact of 3! 4+1+0+3 = 8, 8 is not a math fact or 3!

23. Can you discover which numbers are evenly divisible by 3? Touch the pot to see if you are correct. Click the wizard to try the next number. 930 156 Yes Yes 1374 Yes 271 472 No No

24. Can you discover which numbers are evenly divisible by 3? Touch the pot to see if you are correct. Click on the Wizard to try the next number. 930 156 Yes Yes 1374 Yes 271 472 No No

25. Can you discover which numbers are evenly divisible by 3? Touch the pot to see if you are correct. Click the wizrd to try another number. 930 156 Yes Yes 1374 Yes 271 472 No No

26. Can you discover which numbers are evenly divisible by 3? Touch the pot to see if you are correct. Click the wizrd to try another number. 930 156 Yes Yes 1374 Yes 271 472 No No

27. Can you discover which numbers are evenly divisible by 3? Touch the pot to see if you are correct. Click the wizrd to try another number. 930 156 Yes Yes 1374 Yes 271 472 No No

28. Can you discover which numbers are evenly divisible by 3? Touch the pot to see if you are correct. Click the wizrd to try another number. 930 156 Yes Yes 1374 Yes 271 472 No No

29. Click the wizrd when you are done.

30. Click the wizard when you are ready to practice. 132 is even so it is divisible by 2 and 1+3+2+ = 6 so it is ALSO divisible by 3. Therefore, 132 is divisible by 6. 132 / 6 = 22 134 is even so it is divisble by 2 but 1+3+4 = 8 so it is not divisible by 3 therefore it is NOT divisible by 6.

31. Use your magical math skills to predict which numbers are divisible by 6. One you have your prediction. Click on the wand to see if you are right. 2406 Click the wizard to learn more. 1824 3862 2580 3475 5610 No Yes

32. Use your magical math skills to predict which numbers are divisible by 6. One you have your prediction. Click on the wand to see if you are right. 2406 Click the wizard to learn more. 1824 3862 2580 3475 5610 No Yes

33. Click the wizrd when you are done.

34. Click the wizard when you are ready to practice. 016 is really 16, since 16 is divisible by 8 so is 7016 7017 / 8 = 877 473 / 8 = 59 r. 1 so 6473 is NOT divisible by 8

35. 8352 7616 7632 Click the wizard after you have found all of the princes. 3230 8040 4260

36. 8352 7616 7632 Click the wizard to try more. 3230 8040 4260

37. 8352 7616 7632 Click the wizard to try more. 3230 8040 4260

38. 8352 7616 7632 Click the wizard to try more. 3230 8040 4260

39. 8352 7616 7632 Click the wizard to try more. 3230 8040 4260

40. 8352 7616 7632 Click the wizard to try more. 3230 8040 4260

41. 8352 7616 7632 Click the wizard to try more. 3230 8040 4260

42. Click the wizrd when you are done.

43. 2+3+7+6 = 18, since 18 is a math fact of 9 then 2376 / 9 = 264 5+3+2=10 10 is NOT divisible by 9 so 532 / 9 = 59 r. 1 Click the wizard when you are done.

44. Click on each rune that is divisible by 9. If you are right, the rune will be magical, wrong and it will just be a rock. 624 9063 Click the wizard after you have found all magical runes 9054 55,044 919

45. Click on each rune that is divisible by 9. If you are right, the rune will be magical, wrong and it will just be a rock. 624 9063 Click the wizard to try another. 9054 55,044 919

46. Click on each rune that is divisible by 9. If you are right, the rune will be magical, wrong and it will just be a rock. 624 9063 Click the wizard after to try another. 9054 55,044 919

47. Click on each rune that is divisible by 9. If you are right, the rune will be magical, wrong and it will just be a rock. 624 9063 Click the wizard to try another. 9054 55,044 919

48. Click on each rune that is divisible by 9. If you are right, the rune will be magical, wrong and it will just be a rock. 624 9063 Click the wizard to try another. 9054 55,044 919

49. Click on each rune that is divisible by 9. If you are right, the rune will be magical, wrong and it will just be a rock. 624 9063 Click the wizard to try another. 9054 55,044 919

50. Click the wizard to test your skills. 45,095 does NOT end in a ‘0’ so it is NOT divisbile by 10. 45,095 / 10 = 4509 r. 5 54,950 DOES end in a ‘0’ so it IS divisible by 10. 43,950 / 10 = 4395 A number divisible by ten always ends in a ZERO!

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