# Maths

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A palindrome number is one that reads the same both forwards and backwards- for instance. 797 or 44. How many palindromic numbers are there between:

a) 10 and 400
b) 10 and 1000

Thanks

• Maths -

what is a?

• Maths -

Sorry,

a) 10 and 400
b) 10 and 1000

• Maths -

im not sure im typing as i find them.
A=total of counting the numbers 11,22,33,44,55,66,77,88,99,101,202,303

B) = total counting the numbers
11,22,33,44,55,66,77,88,99,101,202,303,404,505,606,707,808,909

• Maths -

Mark is right, but for numbers of the form x0x, you can of course use any digit, not just zero, so

101

also implies

111, 121, 131,....

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