Kids flex their mental math and subtraction fact skills as they solve word problems.

These subtraction word problems encourage kids to think about what subtraction means in the real world.

Looking to test your kid's addition and subtraction skills? Ask him to help this elf find the correct answer to each problem.

This busy beaver is boosting his addition skills one problem at a time. Help your kid get in on the addition fun!

Got a speed demon on your hands? See how fast he really is with this worksheet that asks him to think of 5 things he can do in under 10 seconds.

Even basic addition can be a toughie, so let your pride shine through with this addition worksheet that boasts a blue ribbon in the corner.

Do your students like puzzles? Then they'll love helping Sammy the Seal solve this one!

Your students can use their knowledge of simple addition and subtraction facts to solve this KenKen® puzzle.

Will your students help Tommy the Toucan solve this KenKen® puzzle? They'll need their addition and subtraction facts and the numbers 1 through 4.