This is a Smartboard activity that give students the opportunity to work with counting by ones, twos, threes, fives, and tens. On the first several pages the numbers are counting up and only one number is missing. Later on the sequences count down and two or three numbers are sometimes missing. On each page there are places to write in the missing number(s) and the answer(s) are included as well. The preview file has thumbnail shots of many of the pages from this file. This can be used in whole group, small, group, or as a math center. This is a nice introduction into number patterns as well.