Pre-k and Kindergarten find missing numbers 1 to 10 game - Find missing numbers on a number line of numbers from 1 to 10. This is a fun game for teaching children basic counting skills. After haven taught students some basic counting skills, the next great challenge is to teach them how to find missing numbers on a series of number lines from one to ten. This game is an interactive online test which enables students to play and have instant feedback on the problems they solve. This is the more reason why parents and teachers will find this activity a useful supplement for the regular course as well as for homework review. This test can also be used by students in 1st , 2nd and 3rd grades.