Give a six-year-old a page of colored cards and a pencil, and the first instinct is often to join the cards that look alike. This 1st grade matching addition facts to 20 worksheet asks for something else: join each sum to its true total. Eight sum cards sit on the left side, in two groups of four, and eight answer cards sit on the right. Some sums add a small number to a teen number, like 15 + 4 or 11 + 2. Others cross ten, like 8 + 6 or 6 + 9. Your child works out each fact, then draws a line to match each sum to its total, all within the sums to 20. A second page gives the answer key.