Build children's confidence with subtraction by downloading this Year 3 Subtract 10s Across a 100 Prior Learning worksheet. This resource includes a variety of questions based on an objective covered in year 2 where children subtract with 2-digit numbers including exchanges. Our prior learning worksheet is a great stepping stone for children to be prepared for the new learning that takes place in this lesson.

Use as a knowledge finding tool at the start of your lesson to give you an understanding of who might need additional support in the main lesson. Alternatively, this could be used as a morning activity or include it in an intervention group for those children who find subtraction difficult.