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

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

Use this colorful, open-ended worksheet to help your learners understand the value of 100.

Help your first grader prepare for the coming school year with this summer-themed beginning addition worksheet.

What time do you wake up in the morning or start school? Have students flex their time-telling skills by matching analog and digital clocks, all while keeping track of common morning activities.

Liven up addition for your first grader; this brightly colored worksheet's full of fireworks and fun.

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. 

This counting activity is also a coloring page! Your child will get to trace numbers 21-25, cut them out and arrange them in the correct order.

Practice measuring in centimeters with this beginner's worksheet! Kids can use the cut-out ruler to measure each item in centimeters.

Fall into some fun addition practice with this seasonal worksheet!

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

Use a paperclip “ruler” to measure common objects in this colorful worksheet!

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