Mystery Number

Some days our class does Mystery Number. In this Mrs R rights down a number. Then Mrs R asks only 3 people to gess a number and after that Mrs R choses to count in 1's, 2's, 3's, 4's, 5's, 9's our 10's. The student who is the closest gets a stamp in their stamp book. Then the class has to figure out some things about the number if we say somthing about the number we get a sticer . I think mystery number helps me alot with my maths. I enjoy doing mystery number.