4th Grade Addition Facts Worksheets and Activities

In this addition worksheet, students add whole tens (like 10, 20, 30, etc.) to 2-digit numbers. This helps build fluency with mental math and reinforces place value understanding. Worksheet instructions: Find the sum for each problem below.

In this worksheet, students practice adding whole tens (like 10, 20, 30, etc.) to 2-digit numbers. This helps build fluency with mental math, reinforce place value understanding, and strengthen addition skills in a structured way. Worksheet instructions: Find the sum for each problem below.

In this addition worksheet, students add a 1-digit number and a 3-digit number. Some problems involve regrouping. Worksheet instructions: Find the sum for each problem below.

In this worksheet, students add a 1-digit number to a 3-digit number. Some problems involve regrouping, making it great for building fluency and number sense. Worksheet instructions: Find the sum for each problem below.

In this addition worksheet, students add a 2-digit and two 1-digit numbers in their heads. It’s great mental math practice that helps build number sense and confidence with multi-step addition. Worksheet instructions: Find the sum for each problem below.

In this worksheet, students add one 2-digit and two 1-digit numbers in their heads. It’s great mental math practice that helps build number sense and confidence with multi-step addition. Worksheet instructions: Find the sum for each problem below.

In this addition worksheet, students "complete the hundred" by finding the missing addend in addition equations where the sum is 100. Students are encouraged to solve these exercises mentally, without writing down intermediate steps. Worksheet instructions: Find the missing number in each equation.

In this worksheet, students "complete the hundred" by finding the missing addend in addition equations where the sum is 100. Students are encouraged to solve these exercises mentally, without writing down intermediate steps, to build number sense and fluency. Worksheet instructions: Find the missing number in each equation.

In this addition worksheet, students practice finding missing addends in problems that combine a 2-digit number with a 1-digit number. The goal is to build fluency and confidence in mental math by solving these problems quickly and accurately. Worksheet instructions: Find the missing number in each equation.

In this worksheet, students practice finding missing addends in addition problems that combine a 2-digit number with a 1-digit number. The goal is to build fluency and confidence in mental math by solving these problems quickly and accurately. Worksheet instructions: Find the missing number in each equation.

This addition worksheet helps students practice adding 2-digit and 1-digit numbers within 100 (with carrying). Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.

This addition worksheet helps students practice adding 2-digit and 1-digit numbers (with carrying). Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.

This mental math worksheet helps students practice adding 2-digit and 1-digit numbers with carrying. Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.

This addition worksheet helps students practice adding 2-digit and 1-digit numbers with carrying. Designed to improve mental math skills, it encourages kids to solve problems quickly and accurately through repeated practice. Worksheet instructions: Find the sum for each problem.

In this addition worksheet, each addition sentence has 3 addends, with one missing. Worksheet instructions: Find the missing number in each equation. If you find it easy, try to figure out the answers mentally.

In this addition worksheet, students practice vertical addition by adding 3-digit numbers (with regrouping). Worksheet instructions: Find the sum for each addition problem.

This worksheet is perfect for improving addition skills, and focuses on adding two 2-digit numbers in columns (with regrouping - also known as carrying). Worksheet instructions: Find the sum for each addition problem (with regrouping).

This worksheet is great for improving addition skills, and focuses on adding two 2-digit numbers in columns (with regrouping - also known as carrying). Worksheet instructions: Find the sum for each addition problem (with regrouping).

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: 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.