Introduce your first grader to centimeters by helping her measure some familiar things: school supplies!

Time for school! Have your first grader take a look at this school (school of fish, that is) and solve the addition problems.

You can measure length with all kinds of units, not just inches and centimeters!

Assess and build your subtraction skills with this inviting math worksheet!

Understanding place value is fundamental to developing and mastering number sense skills. Use this assessment activity to evaluate how your first graders are coming along in their understanding of place value using tens and ones.

Learners will tackle 12 subtraction problems within 20 in this football-themed math worksheet. 

Fall into some fun addition practice with this seasonal worksheet!

In autumn, the leaves turn red, orange, and yellow—test your logic skills with a sudoku puzzle to match!