Students will develop their understanding of the number sequence with this resource. Available for numbers to 10, 20, 50 and 100 - allowing you to differentiate for all of the students in your class. Numbers to 10 includes: 1 full grid, 1 blank grid and 8 partially filled grids (all different). Numbers to 20 includes: 1 full grid, 1 blank grid and 10 partially filled grids (all different). Numbers to 50 includes: 1 full grid, 1 blank grid and 13 partially filled grids (all different). Numbers to 100 includes: 1 full grid, 1 blank grid and 13 partially filled grids (all different).