Put two equal rows of snacks in front of a six-year-old, and many will count every piece, from one to the very end. Fewer notice that both rows match. This 1st grade adding doubles with pictures worksheet is about noticing. Six boxes each hold two equal rows of pictures: sausages or chicken drumsticks. The first box shows the worked example, 6 + 6 = 12. For the other five, your child counts one row, sees that the second row is the same, then writes the full addition sentence on the empty line. The doubles run from 2 + 2 up to 7 + 7. A second page gives the answer key.