1 Multiples Stage 4 Year 7 Press Ctrl-A ©2009 – Not to be sold/Free to use

2 Multiples (Stage 3) Multiples of a number are numbers into which it can divide without a remainder, Example: List first six multiples of 3  1x3 3  2x3  3x3  4x3  5x3  6x

3 Multiples (Stage 3) Multiples of a number are numbers into which it can divide without a remainder, Example: List first five multiples of 4  1x4 4  2x4  3x4  4x4  5x

4 Multiples (Stage 3) Multiples of a number are numbers into which it can divide without a remainder, Example: List first six multiples of 5  1x5 5  2x5  3x5  4x5  5x5  6x

5 Multiples (Stage 3) Multiples of a number are numbers into which it can divide without a remainder, Example: List first six multiples of 21  1x21 21  2x21  3x21  4x21  5x21  6x

6 Circle Common Multiples Multiples (Stage 3) To find the Lowest Common Multiple (LCM) of two or numbers: 1.List the set of multiples of each number. 2.Find the smallest number common to both. Example: Find the LCM of 4 and 5. 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 5: 5, 10, 15, 20, 25, 30, 35, 40 Lowest Common Multiple = 20 42

7 Circle Common Multiples Multiples (Stage 3) To find the Lowest Common Multiple (LCM) of two or numbers: 1.List the set of multiples of each number. 2.Find the smallest number common to both. Example: Find the LCM of 3 and 5. 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 5: 5, 10, 15, 20, 25, 30, 35, 40 Lowest Common Multiple = 15 42

8 Circle Common Multiples Multiples (Stage 3) To find the Lowest Common Multiple (LCM) of two or numbers: 1.List the set of multiples of each number. 2.Find the smallest number common to both. Example: Find the LCM of 3 and 2. 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 Lowest Common Multiple = 6 42

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