Integer Jim's Math Adventures

Mental math practice for the multiplication facts using this popular round-robin classroom game. Included are a set of cards for up to 30 students to play. There is also a blank template for making your own cards. Suggestions for making the game more challenging and fun for your students.

This is an amazing trick with numbers. Students think of a 2-digit number, perform 2 simple calculations, and find a symbol that corresponds to their numbers on a chart. The teacher picks the correct symbol. The trick is repeated two more times, and each time the teacher picks the correct symbol. The last page uses algebra to explain how the trick works.