1st Grade Mental Math Worksheets and Printables

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

Worksheet instructions: Solve each subtraction problem, then color in the hearts to match the answers above.

Worksheet instructions: Solve each subtraction problem, then color in the hearts to match the answers above.

Worksheet instructions: Solve each subtraction problem, then color in the hearts to match the answers above.

Worksheet instructions: Help the driver reach the car by coloring in each box if the answer equals 5.

Worksheet instructions: Help the bookmark reach the books by coloring in each box if the answer equals 4.

Worksheet instructions: Help the farmer reach the pig by coloring in each box if the answer equals 3.

Worksheet instructions: Help the pump reach the basketball by coloring in each box if the answer equals 2.

Worksheet instructions: Help the princess reach the frog by coloring in each box if the answer equals 1.

Worksheet instructions: Help the cheese reach the pizza by solving each subtraction problem.

Worksheet instructions: Help the hot air balloon reach the rainbow by solving each subtraction problem.

Worksheet instructions: Help the pencil reach the notebook by solving each subtraction problem.

Worksheet instructions: Help the letter A reach the apple by solving each subtraction problem.