If you're looking for a hands-on way to help children develop their skills when adding or subtracting 10 or 100, this Year 3 10 or 100 More or Less Supporting Activity is just what you're looking for! 

This is a practical and engaging activity that is perfect for using alongside our varied fluency and problem solving resources. Children pick a 3-digit number and decide if they are going to add or subtract 10 or 100 to or from it. They identify how many place value columns have changed and record the calculation in a table. A table is also provided for writing the number sentences on. Perfect for using in either a teacher-led group, or when working independently.