2nd Grade Mental Math Worksheets and Activities

In this addition worksheet, students practice adding three 2-digit whole tens (such as 20 + 30 + 40). This helps strengthen mental math skills, enhances place value understanding, and builds fluency with multi-step addition. Worksheet instructions: Find the sum for each problem.

In this worksheet, students practice adding three 2-digit whole tens (such as 20 + 30 + 40). This helps strengthen mental math skills, enhances place value understanding, and builds fluency with multi-step addition. Worksheet instructions: Find the sum for each problem.

In this worksheet, students practice adding two whole tens and two 1-digit numbers. This exercises helps build mental math fluency, reinforce place value, and improve multi-step problem solving (tip: add the "tens" first, then add the "ones"). Worksheet instructions: Find the sum for each problem below.

In this addition worksheet, students practice adding two whole tens (like 20, 40, 60, etc.) and two 1-digit numbers. This helps build mental math fluency, reinforce place value, and improve multi-step problem solving (tip: add the "tens" first, then add the "ones"). Worksheet instructions: Find the sum for each problem below.

In this worksheet, students find the missing number when a 2-digit number is added to a whole ten (like 10, 20, 30, etc.). All questions have a missing addend. Worksheet instructions: Find the missing number in each equation.

In this addition worksheet, students find the missing number when a 2-digit number is added to a whole ten (like 10, 20, 30, etc.). All questions have a missing addend. Worksheet instructions: Find the missing number in each equation.

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.

This math worksheet is perfect for helping students practice completing equations that add up to 1,000 using whole hundreds. Each problem is designed to reinforce number bonds and place value understanding while encouraging mental math fluency. Worksheet instructions: Find the missing number that makes each equation equal 1,000.

This worksheet is perfect for helping students practice completing equations that add up to 1,000 using whole hundreds. Each problem is designed to reinforce number bonds and place value understanding while encouraging mental math fluency. Worksheet instructions: Find the missing number that makes each equation equal 1,000.

This math worksheet is ideal for helping students practice mental math strategies by finding missing addends in addition problems involving whole hundreds, with sums up to 2,000. It reinforces place value understanding, builds fluency in multi-digit addition, and strengthens problem-solving skills. Worksheet instructions: Find the missing number in each equation below.

This addition worksheet is ideal for helping students practice mental math strategies by finding missing addends in addition problems involving whole hundreds, with sums up to 2,000. It reinforces place value understanding, builds fluency in multi-digit addition, and strengthens problem-solving skills. Worksheet instructions: Find the missing number in each equation below.

This worksheet is ideal for helping students practice mental math strategies by finding missing addends in addition problems involving whole hundreds, with sums up to 2,000. It reinforces place value understanding, builds fluency in multi-digit addition, and strengthens problem-solving skills. Worksheet instructions: Find the missing number in each equation below.

This addition worksheet helps students practice completing equations with four two-digit numbers that are multiples of ten, reinforcing their mental math skills and place value understanding. Worksheet instructions: Find the missing number in each equation.

This whole-tens addition worksheet helps students practice completing equations with four two-digit numbers that are multiples of ten, reinforcing their mental math skills and place value understanding. Worksheet instructions: Find the missing number in each equation.

This worksheet helps students practice adding four two-digit numbers that are all multiples of ten, building fluency in mental math and place value. Worksheet instructions: Find the sum for each problem.

This math worksheet helps students practice adding four two-digit numbers that are multiples of ten, building fluency in mental math and place value. Worksheet instructions: Find the sum for each problem.

This addition worksheet helps students practice adding four two-digit numbers that are multiples of ten, building fluency in mental math and place value. Worksheet instructions: Find the sum for each problem.

This whole tens addition worksheet (with missing number) helps students practice completing equations with three two-digit numbers that are multiples of ten, reinforcing their mental math skills and place value understanding. Worksheet instructions: Find the missing number in each equation.

This addition (whole tens) worksheet helps students practice completing equations with three two-digit numbers that are multiples of ten, reinforcing their mental math skills and place value understanding. Worksheet instructions: Find the missing number in each equation.

This whole tens addition worksheet helps students practice adding three two-digit numbers that are multiples of ten, strengthening their mental math skills and understanding of place value. Worksheet instructions: Find the sum for each problem

This worksheet helps students practice adding three two-digit numbers that are multiples of ten, building fluency in mental math and place value. Worksheet instructions: Find the sum for each problem

This addition worksheet helps students practice adding three two-digit numbers that are multiples of ten, building fluency in mental math and place value. Worksheet instructions: Find the sum for each problem

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.