This unique deck contains 5 sets of standard-sized playing cards printed in black 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. Pair with the Number Cards printed in red (#7312 sold separately) to introduce and practice negative number activities. Set includes 50 playing cards and 4 double-sided cards with suggested activities. Cards measure 2.25" x 3.5" .