Welcome to Dosbarth Dau!
Within our Maths lessons this week we have been learning to add and subtract 11 onto any given number. To do this, we know that by adding/subtracting 10 first and then adjusting with the extra 1 number will help.
Please have a go, using a 100 number square by jumping down (for adding 11) / up (for subtracting 11) one square and then across for the extra 1 number. If you can do this, then can you add/subtract 11 mentally?