3rd Grade Addition Worksheets and Activities | Page 3

Worksheet instructions: Write the correct 5-digit number. For example: 21,721 = 20,000 + 1,000 + 700 + 20 + 1

Worksheet instructions: Fill in the missing number in each equation below.

Worksheet instructions: Write the correct 4-digit number. For example: 1,721 = 1,000 + 700 + 20 + 1

Worksheet instructions: Fill in the missing number in each equation below.

Worksheet instructions: Write the correct 3-digit number. For example: 721 = 700 + 20 + 1

Worksheet instructions: Find the missing numbers in each circle by adding the given numbers. If you find it easy, try to figure out the answers mentally (without writing down the intermediary steps).

Worksheet instructions: Find the missing numbers in each circle by adding the given numbers. If you find it easy, try to figure out the answers mentally (without writing down the intermediary steps).

Worksheet instructions: Add or subtract to find the missing number for each problem.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the missing number for each problem. If both boxes are empty, fill in both numbers.

Worksheet instructions: Find the sum for each addition problem (with regrouping).

Worksheet instructions: Find the sum for each addition problem (with regrouping).

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.

Worksheet instructions: Solve each problem by adding two 2-digit numbers (no carrying or regrouping). You can use the right column to write down the intermediary steps.