2. 2, 3, 5, 9, 10

3. “Divisible BY” What does it mean?

4. “Divisible by” means: If you divide one number by another, the result is a whole number WITHOUT a remainder. Examples: 12 ÷ 6 = 2 No remainder 15 ÷ 5 = 3 No remainder

5. Divisibility Rule 2 A number is divisible by 2 if the last digit is even. (0, 2, 4, 6, 8) Examples:783470 Review Even numbers: ghosteven ghosteven

6. Now You Try: Which number IS NOT divisible by 2? 5721464249 Need More Practice: Numbers Divisible by 2Numbers Divisible by 2

7. WONDERFUL

8. It ends in a 0, 2, 4, 6, or 8.

9. Divisibility Rule 3 A number is divisible by 3 if the sum of the digits is divisible by 3. Examples: 75 : 7 + 5 = 12, 12 ÷ 3 = 4 No Remainder 75 : 7 + 5 = 12, 12 ÷ 3 = 4 No Remainder 369: 3 +6 + 9 = 18, 18 ÷ 3 = 6 No Remainder 369: 3 +6 + 9 = 18, 18 ÷ 3 = 6 No Remainder

10. Now You Try: Which number IS NOT divisible by 3? 5721464279 Need More Practice: Numbers Divisible by 3Numbers Divisible by 3

11. The sum is divisible by 3.

12. WONDERFUL

13. Divisibility Rule 5 A number is divisible by 5 if the last digit is a 0 or 5. Examples: 615ends in a 5 615ends in a 5 1480ends in a 0

14. Now You Try: Which number IS NOT divisible by 5? 9820 779 560 Need More Practice: Numbers Divisible by 5Numbers Divisible by 5

15. The number ends in a zero or a five.

16. Wonderful

17. Divisibility Rule 9 A number is divisible by 9 if the sum of the digits is divisible by 9. Examples: 963: 9 + 6 + 3 = 18, 18 ÷ 9 = 2 5445: 5 + 4 + 4 + 5 =18, 18 ÷ 9 =2 5445: 5 + 4 + 4 + 5 =18, 18 ÷ 9 =2

18. Now You Try: Find the number that IS NOT divisible by 9. 9873 648 5541 9873 648 5541 Need More Practice: Numbers Divisible by 9 and 10 Numbers Divisible by 9 and 10Numbers Divisible by 9 and 10

19. The sum of the digits is divisible by 9.

20. Great Job!!!

21. Divisibility Rule 10 A number is divisible by 10 is it ends in a ZERO. Example: 7630ends in a zero 410ends in a zero 410ends in a zero

22. Now You Try: Find the number that IS NOT divisible by 10 56,920 7537 870 56,920 7537 870

23. The number ends in a ZERO.

24. Way To Go!!

25. 2 if the last digit is even. 3 if the sum of the digits is divisible by 3. 5 If the last digit is 0 or 5. 9 if the sum of the digits is divisible by 9. 10 if the last digit is 0.