This set includes cards that can be reused for 5 different activities/ lessons. Put in the time to make them once, and use them over and over again! What a great time saver. The skills covered include counting base ten blocks for numbers through 120, telling 10 more than a number, adding ones to 2 or 3 digit numbers, comparing numbers, and showing a number in multiple ways. All activities align with first grade common core standards for NBT. Just print out the cards and 2 game boards, and make copies of the recording sheets and you are ready to go for 5 lessons! They also make great math centers.