Hot Dots® Elapsed Time Math Cards100 Elapsed time questions.Master elapsed time with this set of 50 funny, double-sided cards featuring 100 questions in increments of 1 hour, half hour, quarter hour, 5 minutes, and 1 minute. Use with theHot Dots® pen for a fun and interactive way to practice elapsed time.Grades 2+/Ages 7+The nitty-gritty:· 50 Double-sided, fully illustrated cards (3.5" x 5" )· 100 Grade-level elapsed time problems· For use with Hot Dots® pen