This unique deck contains 5 sets of standard-sized playing cards printed in red with numbers 0-9 to help students understand number concepts such as least to greatest, comparing numbers, numbers closest to ten, expanded notation, addition, subtraction and more. Expand teaching opportunities with positive and negative numbers when paired with the Number Cards printed in black (#7301 sold separately). Set includes 50 playing cards and 4 double-sided cards with suggested activities. Cards measure 2.25" x 3.5" .