Free 1st Grade Math Worksheets - Homeschool Math Simple number chart from 1 to 100 - half of the boxes need filled; Number chart from 1 to 100 - 70% of the boxes need filled; Fill number chart from 1 to 100; even numbers are colored (empty) Fill number chart from 1 to 100; even numbers are colored (partially filled) Fill number chart from 1 to 100, every third number is colored (empty)