Subtraction Flash Cards

Includes 55 double-sided cards featuring 91 equations up to 12-12 with self-checking answers on the opposite side, 6 challenge cards, 1 subtraction table card, instruction card for teaching ideas and activities, and notched corners for easy sorting.

• DOUBLED-SIDED
• NOTCHED CORNERS FOR EASY SORTING
• CARDS MEASURE 3.5" X 6.5"
• RECOMMENDED FOR AGES 6 AND OLDER