Practice basic facts with this refreshing change from flash cards! To use the self-checking 5" x 1 1/2" Wrap-Ups, start with the number at the top of the left column, perform the operation indicated in the center, then draw the string across to the correct answer in the right column. When all questions have been answered, turn the board over to check the embossed answer key lines on the back against the pattern made by the answer string. Each Wrap-Up board comes with 10 problems and instructions.