Today we have explored what happens when you subtract any multiple of ten from a two digit number, some of us even rose to the challenge of exploring what happens when you subtract a multiple of ten from a 3 digit number. Help your child to improve this skill by using games from our learning wall or by simply counting backwards and forwards in tens from any number. For example count back three tens from 67 - 57,47,37 this is the same as 67-30= 37. Help your child to make these links naturally so that they recognise that the ones always stay the same when we add aor subtract a multiple of ten.