1 / 12

WALT: Find the Lowest Common Multiple

WALT: Find the Lowest Common Multiple. What are the multiples of:. 5 10 7 18. How do we know if a number is a multiple of:. 2 4 5 10 100. Are the following numbers multiples of 2?. 246 1067 20000 Three million. Are the following numbers multiples of 4?. 300 235 410

harvey
Download Presentation

WALT: Find the Lowest Common Multiple

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. WALT: Find the Lowest Common Multiple

  2. What are the multiples of: • 5 • 10 • 7 • 18

  3. How do we know if a number is a multiple of: • 2 • 4 • 5 • 10 • 100

  4. Are the following numbers multiples of 2? • 246 • 1067 • 20000 • Three million

  5. Are the following numbers multiples of 4? • 300 • 235 • 410 • Five hundred and thirty two

  6. Are the following numbers multiples of 5? • 1000 • 25456 • 5555 • 1025 • Three million two hundred and fifty six

  7. Which of the numbers below are multiples of both 2 AND 5? 20 40 45 90 76 105 200 305 40 42Give three numbers which are multiples of 2 and 5. What can you say about numbers which are multiples of 2 and 5?

  8. What is a Lowest Common Multiple? • Consider the numbers 2 and 5 • The lowest common multiple is the smallest number which is the multiple of both. • Multiples of 2 are: 2, 4, 6, 8, 10, 12, 14, … • Multiples of 5 are: 5, 10, 15, 20, 25, … • Which is the smallest number that occurs in BOTH lists? • This is the LOWEST COMMON MULITPLE.

  9. What is the LOWEST COMMON MULTIPLE of: • 2 and 7 • 3 and 7 • 5 and 3 • 5 and 7

  10. Question: • Decide with your partner the answer to the question below. You must EXPLAIN your answer and give examples. • Is the lowest common multiple of two numbers always found by multiplying those two numbers together? • E.g LCM of 2 and 7 is 2 x 7 = 14

  11. Find the LCM of: • 4 and 40 • 4 and 8 • 4 and 6 • 12 and 4

  12. Design a poster • Make a poster explaining what the Lowest Common Multiple of a pair of number is. • Make sure you give some examples • Give a method for finding the LCM.

More Related