Below, you will find a wide range of our printable worksheets in chapter Addition of section Addition and Subtraction. These worksheets are appropriate for Third Grade Math. We have crafted many worksheets covering various aspects of this topic, properties of addition, missing addends, adding numbers, adding greater numbers, addition sentences and equations, addition input/output tables, word problems, addition patterns, and many more. We hope you find them very useful and interesting.

A brief description of the worksheets is on each of the worksheet widgets. Click on the images to view, download, or print them. All worksheets are free for individual and non-commercial use.

Please visit Addition and Subtraction to browse more worksheets in the same area. View the full list of topics for this grade and subject categorized by common core standards or in a traditional way.

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Use addition properties to find each sum.

Use properties of addition to solve problems.

Estimate Sums

Estimating sums by using rounding and compatible numbers.

Estimate, then find the sum using place value or mental math.

Shelly Squirrel's 3 - Digit Addition

Shelly Squirrel eats the acorns that have the number 1 in the ones place. Add to find each sum and cross each answer with 1 in the ones place.

Solve addition problems with 3-digit numbers.

Adding More Than 2 Numbers (0-20)

Practice adding more than 2 numbers in a horizontal format.

Adding More Than 2 Numbers (0-20)

Practice adding more than two numbers in a horizontal format.

Adding More Than 2 Numbers (0-100)

Practice adding three numbers (up to 100).

Adding More Than 2 Numbers (0-100)

Adding More Than 2 Numbers (0-100)

Practing addition in a horizontal format.

Nighty Night

Solve each addition problem using regrouping / carry over.

Practice adding 4- digit numbers to find the sums.

Adding 3- and 4- Digit Numbers

Practice adding three and four digit numbers. Some of the problems do require regrouping/carrying.

Find missing addends. Then use addition or a related subtraction fact to solve the word problems.

Balancing Equations - Up to 3-Digits

Write the number in the blank that makes each equation true.

Balance Equations

Compare the sum for each set. Then circle if the equation is true or false.

Balance Equations - 4 or More Digits

Which number makes the equation true?

Addition Sentences - Up to 3-Digits

Complete each addition sentence by filling in the correct numbers in the blanks.

Slam Dunk!

Complete each addition sentence - up to three digits.

Complete the addition patterns over increasing place value.

Complete the addition patterns over increasing place value.

Function Tables - Up to 3-Digits

Complete each function table.

Complete each input/output table.

Input/Output Table

Read and solve the addition word problems ( 2- and 3- digits ).