A great whole class activity that requires listening and mathematical skill. This activity is best used with pencil and paper. Students will have to ascertain whether or not their number fits the question posed by another student's card. This can be tricky, but knowledge of factors and divisibility will help the students determine correct answers. Teacher answer key is available. Students will have fun with this and great discussion and good math review will occur.
“Who has a number divisible by 9 and 15? “
One person has a card with the number 81 and another person has 45.
Both people determine their number is divisible by 9, but the person with 81 discovers that 81 is not divisible by 15. The person with 45 determines that 45 is divisible by 15. The person with 45 has the right answer. That person stands up and reads the answer and next question. The game continues.