Do you believe in magic? Do you believe numbers can be magic? Today, Y6 investigated what happens when we add, subtract and reverse non-palindromic numbers. Follow the steps below and see if your mind is blown!

PS a palindromic number is a number that reads the same forwards and backwards for example 232. You must use non-palindromic numbers for this investigation.

Let’s investigate!
1) Write a 3 digit non-palindromic number in your book.
2) Underneath, reverse the digits and write them down.
3) Use a column method to subtract the smaller number from the larger number.
4) Write this number.
5) Reverse this number.
6) Now add these two numbers in a column.

What number did you get? Is it a coincidence?
Is it always true that when we follow this process for non-palindromic numbers we get an answer of 1,089?
Investigate!
Always true, sometimes true, never true?

After learning about place value last week, Y5 tested their understanding of number lines. In pairs, they rolled the dice four times to get a four digit number. Then they had to work out where the number would go on their number line. They also had to work out the correct intervals on their number line up to 10,000.