Strengthen your second grader's ability to tackle his addition facts by adding up the number strings, and uncover a fun fact when he's finished.

Gain expertise with addition sentences within 20 in this helpful math worksheet!

Did you know that multiplying a number by two is the same thing as adding that number to itself? Use this trick in this lovely math worksheet.

Construct your own math city with number sentences in this colorful second-grade worksheet!

Use your addition skills to build your own number city in this unique worksheet!

Practice addition while solving number puzzles in this engaging worksheet for first and second graders!

Let the construction begin! Learners will use number sentences to make buildings in this inviting addition worksheet!

Sharpen your single-digit addition skills with this helpful first- and second-grade worksheet!

This addition puzzle is a great math challenge. Experiment with the number combinations to find the requested sums.

Practice a helpful strategy for adding single-digit numbers in this worksheet, the second entry in a scaffolded series!

Master making ten to help you solve addition problems in this helpful worksheet!

This worksheet is a fun way to practice skip counting by nine, addition facts, and number sense skills.

This worksheet is a fun way to practice skip counting by seven, addition facts, and number sense skills.

Add some color to these Christmas presents in this color-by-number mental math worksheet. Kids will exercise addition and subtraction skills.

Make the math concept "less than" more clear with a colorful worksheet that gets him practicing with number comparisons to make each equation true.

This Christmas color-by-number worksheet gives kids the added challenge of solving math problems. Practice math and creativity with this Christmas worksheet.

Santa left some gifts, but they need a little color. Your child will color the gifts by number with the help of some addition and subtraction problems.

Celebrate the joy of Christmas with an addition and subtraction focused color-by-number worksheet. Your child will solve equations and color in our worksheet.

Kids get a taste of basic algebra in this 2nd grade math worksheet. Kids flip the equations and reverse the operations in order to find the missing number.

Should this Christmas present be red, yellow, or green? It's up to your young mathematician to find out in this Christmas math and color-by-number worksheet.

It's almost Christmas time, and it's up to your kid to calculate the numbers of the season. Tally up the number of Christmas ornaments, candy canes, and movies.

This activity will help students reflect on the many potential combinations for a number as they work on identifying a missing part of a whole using dots and a word bank.

Our combination math and color-by-number worksheet gets your kid to use both sides of his brain. It's Christmas and Santa needs help coloring in his gifts.

Use this handy graphic organizer to help students figure out how many parts make up a whole. Then they'll write out their answers using a helpful number words word bank.

Kids try their hand at reverse addition and subtraction in order to find the numbers missing from each equation in this 2nd grade math worksheet.

Kids practice reverse two-digit addition and subtraction to find the missing numbers in this 2nd grade math worksheet.

Kids practice reverse addition and subtraction to find the missing numbers in this fun 2nd grade math worksheet.

Construct a thriving metropolis with this colorful addition worksheet for second graders!

These equations have lost their signs! Only one sign — plus or minus — can make each equation true.