Billie and Isla have made a great Vittle explaining in their own words one of our favourite mental math strategies. We use see 9 think 10 whenever we need to add or subtract a number that is close to a ten. We use our imagination to pretend we are working with a ten (which is easy!) then we adjust how ever many we added or subtracted to get to ten at the end!
We are all really working hard on developing our ability to explain our thinking in maths to others and I think the girls have done a brilliant job!