1.NBT.C Number and Operations in Base Ten online worksheets for Grade 1

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Unlock the world of numbers for your first grader with our meticulously designed 1.NBT.C Number and Operations in Base Ten online worksheets, specifically tailored for Grade 1 learners. These interactive worksheets cover the foundational concepts of numeracy, helping young minds grasp the essentials of counting, place value, and the basics of addition and subtraction. Our engaging and educational exercises ensure a solid understanding of Number and Operations in Base Ten, setting the stage for future mathematical success. Perfect for home or classroom use, these worksheets make learning enjoyable and effective. Empower your Grade 1 student with the skills they need for academic achievement.

Check out this FREE Grade 1 1.NBT.C Trial Lesson!

Add 10 to a 2 digit Number

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Journey Through Space Worksheet
Journey Through Space Worksheet

Journey Through Space Worksheet

Astronauts are essential explorers. They travel between Earth and other planets to gain knowledge of life in space. Being an astronaut requires strong math skills, so help your child develop them through this worksheet. Ask them to assist Sally on her journey to the planets by solving the number sentences in the picture. Verify the answers are correct.
Journey Through Space Worksheet
Worksheet
Space Mission Math Worksheet
Space Mission Math Worksheet

Space Mission Math Worksheet

Your kids will love this worksheet! They can help astronauts reach Jupiter by tracing a line through all the equations and adding them up correctly. Spark their curiosity about space by exploring asteroids, planets, and aliens. Astronauts are professionals who study the complexities of space - let them help your child join in the journey!
Space Mission Math Worksheet
Worksheet
Find The Difference Worksheet
Find The Difference Worksheet

Find The Difference Worksheet

Kindergarteners need to work out subtraction problems and get the right answers. To help them, point to the alien ship with '30' in it on the worksheet. Get them to follow a line to the equations with a difference of 30. Solving these simple subtraction problems will give the answers.
Find The Difference Worksheet
Worksheet
Exploring Outer Space Worksheet
Exploring Outer Space Worksheet

Exploring Outer Space Worksheet

Outer space is an intriguing world. Physics behave differently than on Earth, and much remains to be uncovered. In this worksheet, scientists have located a new solar system in a distant galaxy. Explain to your kids what these two things are, then have them help count the findings. Solve the math problems, then link the lines to the right answer.
Exploring Outer Space Worksheet
Worksheet
Night Sky Math Worksheet
Night Sky Math Worksheet

Night Sky Math Worksheet

Kids can use this colorful worksheet to learn math and addition while also exploring the night sky. Invite them to use a telescope to identify the things they see. Ask them to join Ana, the little girl in the worksheet, to count what she saw in two nights. Help them add the totals of each night to find out how many of each item she saw!
Night Sky Math Worksheet
Worksheet
Regrouping With Base Ten Blocks Worksheet
Regrouping With Base Ten Blocks Worksheet

Regrouping With Base Ten Blocks Worksheet

Challenge your child to regroup the base ten blocks and solve the four equations in this worksheet. This exercise requires counting and adding up in base ten. When they are done, help them check the correct sum.
Regrouping With Base Ten Blocks Worksheet
Worksheet
What Equation Is That? Worksheet
What Equation Is That? Worksheet

What Equation Is That? Worksheet

Have your students practice counting with base ten blocks. This will help them with math struggles. Homework and worksheets will help them improve; ask them to trace lines to the correct equation on a tracing sheet. Guide them as they count the blocks and trace the lines.
What Equation Is That? Worksheet
Worksheet
Let's Regroup Worksheet
Let's Regroup Worksheet

Let's Regroup Worksheet

Counting is fun! Help teach your child with fun, colorful worksheets like this one. For simple sum-adding or counting high numbers, this printout helps them master the problems. Three equations with numbers are at the top. Guide your child to find the correct answer, then draw a line to the sum for each equation.
Let's Regroup Worksheet
Worksheet
Properties of Addition Maze: Voting Worksheet
Properties of Addition Maze: Voting Worksheet

Properties of Addition Maze: Voting Worksheet

The good citizen in the worksheet needs your child's help to vote. Ask them to draw a line through all equations with correct sums to get the citizen to the polls. Voting is the right and obligation of all good citizens. It helps elect the right candidates and exercise legal rights.
Properties of Addition Maze: Voting Worksheet
Worksheet
Solving Subtraction Equations Worksheet
Solving Subtraction Equations Worksheet

Solving Subtraction Equations Worksheet

Encourage your kids to engage their brains by completing this fun math worksheet! They'll soon realise that the subtraction problems aren't so daunting after all. Assist by drawing a line between each problem and the correct answer, using base 10 blocks to illustrate how many need to be taken away. Your kids will love the colourful printout and gain a better understanding of subtraction.
Solving Subtraction Equations Worksheet
Worksheet
Matching Subtraction Equations To Base 10 Models Worksheet
Matching Subtraction Equations To Base 10 Models Worksheet

Matching Subtraction Equations To Base 10 Models Worksheet

Help your student draw a line to the equation that matches the subtraction shown with the base 10 blocks. Guide them through the task, ensuring they have good subtraction, counting and problem-solving skills. This tracing sheet is easy enough to complete with your support; the three mathematical problems here should be straightforward.
Matching Subtraction Equations To Base 10 Models Worksheet
Worksheet
Subtracting With Base 10 Blocks Worksheet
Subtracting With Base 10 Blocks Worksheet

Subtracting With Base 10 Blocks Worksheet

Ask your child to count the cubes then help them check the answer. This problem may seem tricky, but it's just basic math. If they can count, they should have no trouble completing the exercise.
Subtracting With Base 10 Blocks Worksheet
Worksheet
Fact Families: Find Correct Family Worksheet
Fact Families: Find Correct Family Worksheet

Fact Families: Find Correct Family Worksheet

Test your students' math and reasoning skills with this worksheet. It features 4 houses, each with a group of fact families on it. Some are correct, some are wrong - help students identify which are correct and circle the box next to them. This will help them progress in school.
Fact Families: Find Correct Family Worksheet
Worksheet
Fact Families: Match Family Members Worksheet
Fact Families: Match Family Members Worksheet

Fact Families: Match Family Members Worksheet

Give your kids a hand at solving this math pdf! Have them figure out the missing numbers and then draw lines to connect the correct fact families. This worksheet will help your students practice addition skills while aiding the turtle in the picture. Let's get those brains working!
Fact Families: Match Family Members Worksheet
Worksheet
Fact Families: Find Missing Number Worksheet
Fact Families: Find Missing Number Worksheet

Fact Families: Find Missing Number Worksheet

Assess your student's addition and subtraction knowledge with this worksheet exercise. Task them to identify missing numbers in the fact families and circle the number that completes the pair. Strengthen their reasoning skills and enhance their math concepts.
Fact Families: Find Missing Number Worksheet
Worksheet
Addition Equations With Base 10 Blocks Worksheet
Addition Equations With Base 10 Blocks Worksheet

Addition Equations With Base 10 Blocks Worksheet

If your students are struggling with base 10 addition, this worksheet is here to help. Guide them with connecting the blocks to the equation with a line. It's a fun and colourful way to encourage learning.
Addition Equations With Base 10 Blocks Worksheet
Worksheet
Adding With Longs and Cubes Worksheet
Adding With Longs and Cubes Worksheet

Adding With Longs and Cubes Worksheet

Math might not be your child's favorite, but they must master it to advance. If they're having difficulties or don't like it, use this worksheet to make it easier. Have them add longs and cubes together to find the total for each question, then circle the correct answer. This exercise can help make math experiences better.
Adding With Longs and Cubes Worksheet
Worksheet
Subtract Tens: Spooky Math Worksheet
Subtract Tens: Spooky Math Worksheet

Subtract Tens: Spooky Math Worksheet

No need to fear solving math equations! Your mathematician will be a hero and help the boy escape the haunted house. Number families, if/then statements, fun graphics and increased understanding are all part of the equation. They'll have so much fun, they won't even realize it's math!
Subtract Tens: Spooky Math Worksheet
Worksheet
Daisy Subtraction Quest Worksheet
Daisy Subtraction Quest Worksheet

Daisy Subtraction Quest Worksheet

Ohh-la-la! These daisies are something special! With ten petals each, they're perfect for helping little math learners use tens to find number sentences that differ by 20. Our free worksheet is full of bright colors to engage and easy questions to strengthen math automaticity and confidence.
Daisy Subtraction Quest Worksheet
Worksheet
Subtracting Tens Worksheet
Subtracting Tens Worksheet

Subtracting Tens Worksheet

Base ten blocks enable kids to make practical math connections and develop number sense. This free worksheet, using bright-colored tens blocks, helps children learn to skip count and subtract. It lays a strong foundation for upcoming higher level math problems.
Subtracting Tens Worksheet
Worksheet
Stolen Cheese Case Maze Worksheet
Stolen Cheese Case Maze Worksheet

Stolen Cheese Case Maze Worksheet

Someone has stolen the cheese! Can your mathematician detective figure out who it is? Was it the dog, cat or mouse? Have them use traceable lines to skip count by 10 on this free PDF worksheet to solve the case. They'll be having fun and developing their skip-counting strategy at the same time!
Stolen Cheese Case Maze Worksheet
Worksheet
Rocket Math Worksheet
Rocket Math Worksheet

Rocket Math Worksheet

Your students will be math wizards in no time as they blast off on this exciting and colorful PDF worksheet. They'll use the 10s strategy to practice addition and subtraction, and they'll learn to skip count forwards and backwards. Keep them engaged and make learning fun!
Rocket Math Worksheet
Worksheet
Snowball Math Worksheet
Snowball Math Worksheet

Snowball Math Worksheet

Kids can have a snowball fight and build math skills at the same time with this free worksheet. Kids can use tens to add and subtract for quick math equations and select the correct answers. No need to worry about getting cold either - these snowballs won't chill you!
Snowball Math Worksheet
Worksheet
Subtraction Quest Worksheet
Subtraction Quest Worksheet

Subtraction Quest Worksheet

Send your little mathematicians on a quest full of fun! This free, downloadable PDF worksheet has them using base ten blocks to decide if the difference in each problem is 34. They'll solve each problem, marking equations where the difference is 34. It's a great way to build number sense and challenge themselves - plus, they won't even realize it's math!
Subtraction Quest Worksheet
Worksheet