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Special Numbers Stage 4 Year 7 Press Ctrl-A ©2009 – Not to be sold/Free to use.

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Presentation on theme: "Special Numbers Stage 4 Year 7 Press Ctrl-A ©2009 – Not to be sold/Free to use."— Presentation transcript:

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

2 2 Palindromic Numbers Palindromes are numbers or words that are the same backwards as forwards. Examples madam Mum Dad Hannah toot /1/11 42

3 3 Palindromic Words What about? REVIVER ROTATOR LEPERS REPEL MADAM I’M ADAMSTEP NOT ON PETS NO LEMONS, NO MELON DENNIS AND EDNA SINNED ABLE WAS I ERE I SAW ELBA A MAN, A PLAN, A CANAL, PANAMA SUMS ARE NOT SET AS A TEST ON ERASMUS 42

4 4 Palindromic Numbers What about Number Sentences? 11 =11 = 11 2 = = = = = = =

5 5 Palindromic Numbers More Number Sentences? 11 1 = 11 2 = 11 3 = 11 4 = =1 42

6 6 Palindromic Numbers More Number Sentences? A palindromic number can be generated from any number. All you do is to continually add a number to its reversal until you get a palindrome = = = = = 1331 Now try one yourself!!! 42

7 7 Square Numbers Can be made into squares x1 3x3 2x2 16 4x4 25 5x5 36 6x

8 8 Triangular Numbers Can be made into triangles

9 9 Sum of Triangular Numbers What type of number is the sum of consecutive triangular numbers? Square Numbers 42


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