An easy fun way for kids to practice essential math skills. This 54-card set includes 52 self-checking flash cards that feature more than 100 subtraction problems. Two bonus resource cards are also included with additional tips and math game ideas. Large, bold numbers are placed on a white background for easy reading. Flash cards allow kids to develop critical thinking, decision-making, turn-taking and other skills while allowing them to learn in a hands-on way. Subject Area: Mathematics; Specific Subject: Subtraction 0 to 12; Language(s): English; Grades: Grades 1 to 5.