Welcome to Dosbarth Dau!
Spring 1 2018
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?