Good morning.
Have you got your homemade Base 10 you used yesterday?
Today we're carrying on with tens and ones but now thinking about 1 more and 1 less.
How can you show the number 16?
How could we find one more?
How does this change the number?
Which digit changes? The tens or the ones?
How would we find one less?
How does this change the number?
What’s the same and what’s different between 12 and 13?
Is it only ever the ones digit that changes?
Have a go at the activities below using your equipment to help you.