Can your little math whiz add up sums quickly in his head? Teach him to estimate before adding, a great skill to put to use in everyday life!

Learners solve 12 three- and four-digit problems as they work on their multidigit addition skills.

Children will put their three-digit addition skills to the test as they solve 23 practice problems in this math worksheet.

Learners will solve 20 two- and three-digit addition problems in this versatile practice worksheet.

This simple worksheet is packed with two-digit and three-digit subtraction problems.

Give students practice adding three-digit numbers within 1,000! 

Get more practice performing addition within 100 using open number lines with this first-grade math worksheet!

Get more practice performing addition within 100 using open number lines with this first-grade math worksheet!

Practice counting and adding by ten with a hundred chart!

Practice addition within 100 using open number lines with this first-grade math worksheet!

Sharpen second graders' hundred chart know-how with this addition worksheet!

Hop, skip, and jump using compensation in this second- and third-grade addition worksheet!

Test your talent in two-digit addition with this colorful math worksheet!

3...2...1...go! Students will apply their knowledge of addition facts with this speedy worksheet!