Carson Dellosa Hearts: Kid-Drawn Calendar Cover-Up (5424) 36 cards per pack A perfect fit for standard classroom calendars Cards numbered 1 through 31 Includes 5 extra unnumbered cards Great for skill games, number lines, game pieces, math manipulative and more 36 cards per pack, A perfect fit for standard classroom calendars, Cards numbered 1 through 31, Includes 5 extra unnumbered cards, Great for skill games, number lines, game pieces, math manipulatives, and more