This is a great quick review file for the interactive Smartboard using notebook 10. Student is able to pick a number using the random number generator and to come up with the correct number that is one less than, one more than, ten less than and ten more than. This is a number activity for (1-100) Great discussion to directions on a hundred's chart (left for less than, right for greater than, up for ten less and down for ten more) Great number sense activity! Interactive and can be used over and over again. There are three level to choose from.