# Divisibilty Rules.pptx

28. Sep 2022
1 von 19

### Divisibilty Rules.pptx

• 1. Objectives • State the divisibility rules for 2, 5, and 10. • Determine if given numbers are divisible by 2, 3,5,6,9 and 10 using the divisibility rules. • Find the common factors of whole numbers using the divisibility rules for 2,3,5,6,9 and 10.
• 3. Divisibilty Rules
• 4. In repacking large quantities of relief goods into smaller packs, you have to make sure that each pack should have the same quantity. Your skill in dividing numbers will be helpful in doing this. But sometimes, you have to perform division quickly. What should you do?
• 5. To help you do this, a set of rules called divisibility rules was developed. These rules allow you to determine if a number is divisible by a certain divisor, no matter how big the number may seem. In this lesson, we will learn the divisibility rules for 2, 5, and 10.
• 6. Divisibility It is the “ability” of a number to be divided by another number without a remainder. If a number is divided by a divisor and the result is a whole number with no remainder, then the number is divisible by that divisor. Example: The number 720 is divisible by 2 because 720÷2=360.
• 7. Divisibility Rules These are helpful ways in determining if one number is divisible by another number without having to do actual division.
• 12. • Tell whether 356 is divisible by 2. • Tell whether 485 is divisible by 2, 5, and 10. • Determine which among 2, 5, and 10 are common factors of 25 and 40. Examples:
• 16. • Determine if 366 is divisible by 6. • Determine if 594 is divisible by 3, 6, and 9. Examples:
• 17. • Consider a batch of 120 bread rolls. Is it possible to pack all the bread rolls into 2, 5, and 10 plastic bread bags such that each bag will have the same number of rolls? • Mr. Walter has 105 pieces of marbled chocolates. Can he give all the chocolates to his 3 grandchildren such that each of them will receive the same number of chocolates? Group Activity
• 18. Seatwork : 1.Is 528 divisible by 2, 5, and 10? 2.Which among 2, 5, and 10 are common factors of 16 and 30? 3.Tell whether 1 953 is divisible by 9. 4.Is 1 974 divisible by 3, 6, and 9?
• 19. Thank You