Make word problems come alive for the whole class! Each student receives a Zip Around card that is keyed so that a question on one card requires the answer on another card. For Example: One student asks "Who has 4 3?" The student with the answer "7" stands up and says "I have 7. Who has ...?" The questions and answers continue until the cycle is completed. 32 cards with four levels of difficulty per card are included. Set B includes numbers 1-100 using double-digit and 3 column addition and subtraction with carrying.