Year 2 maths worksheets pdf free - math4children.com Addition Matching Exercise - draw lines. Adding in threes - 1 + 2 + 3 =. Arithmentic Addition of objects. Addition 1 to 10 with illustrations and graphics - add up the numbers and fill the box. Addition 1 to 10. Add up the numbers and fill in the box - no illustrations. Addition of circles, triangles and squares.