1st Grade Math Worksheets — Free Printable PDFs
First grade math is the year kids move from counting into real arithmetic. First graders add and subtract within 20, read and write numbers to 120, understand tens and ones, and start solving one-step word problems. This free worksheet generator is preset to easy addition (1–10) as a warm-up. Most first graders should spend their time on easy addition and subtraction to build fluency in the core 1.OA (operations and algebraic thinking) standard. Daily practice of ten to fifteen minutes is more effective than occasional longer sessions. Finger counting is still normal at this age — fluency comes with repetition, not by banning the strategy.
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Generate unlimited math practice worksheets for grades K-6+. Our worksheet generator creates randomized problems for basic arithmetic, long division with remainders, fractions, and geometry. Each worksheet is unique—download as many as you need.
Questions
What grade levels are these for?
Our worksheets cover K through 6th grade and beyond. Easy levels start with single digits, while Expert levels include 5-digit numbers and complex operations.
What math topics are available?
Addition, subtraction, multiplication, division, long division with remainders, fraction operations (add/subtract), and geometry (area and perimeter of rectangles and triangles).
Are problems randomly generated?
Yes. Every worksheet is unique. Click Regenerate for new problems, or download multiple times for varied practice.
Do I need an account?
No. Generate and download unlimited worksheets for free. No signup required.
How to use these 1st grade math worksheets
Start with addition, easy
Easy is 1–10. Stay here until sums within 10 are near-automatic, then progress.
Alternate addition and subtraction
Subtraction is usually harder than addition at this age. Rotate every few sessions so your child builds both.
Graduate to medium when ready
Medium is 1–100 — a big jump. Most first graders don't hit this until late in the year.
Keep sessions short
Ten to fifteen minutes of daily practice is more effective than a weekly marathon.
Frequently asked questions
What does a first grader learn in math?
The Common Core first-grade standards cover addition and subtraction within 20 (with fluency to 10), place value for two-digit numbers, measuring length in non-standard units, telling time to the half hour, and basic geometry (shapes, halves, and quarters). Word problems with addition and subtraction are a core focus.
What's the difference between kindergarten and first grade math?
Kindergarten focuses on counting and number recognition, with simple addition as an introduction. First grade moves into true arithmetic: kids are expected to add and subtract accurately within 20, read larger numbers, and solve short word problems. The expected level of fluency is the biggest jump.
My first grader is still counting on fingers. Is that a problem?
No — finger counting is completely normal in first grade. Fluency with small sums builds slowly with practice. Most kids transition off fingers organically by the end of the year. Don't ban the strategy; just keep practicing.
Are these 1st grade worksheets Common Core aligned?
The difficulty levels match the Common Core 1.OA (operations and algebraic thinking) and 1.NBT (numbers and operations in base ten) standards for addition and subtraction. They can be used alongside any math curriculum.
How do I help my first grader with word problems?
Read the problem out loud together. Underline the numbers and circle the question. Translate it into a math sentence. At this age, most word-problem struggles are reading struggles in disguise — the arithmetic is usually fine once the problem is understood.