Team CB

In Maths this week we have explored finding complements to 100. Initially we began by having a 2 digit number in the 90s and adding a single digit to make 100. As a class we talked about how we could use our number bonds to 10 to support with finding the answer. We then moved on the next day to finding 2 digit numbers to 100 where we had to use the one digits to make number bonds to 10 and the tens had to add to 9 tens. We used a scaffold mat to support with this initially before moving towards more mental methods by the end of the week.