Math Worksheets for 1st Graders First Grade Math Worksheets: Addition & Subtraction to 20, Place Value & Word Problems

➕ Addition to 20

Twenty addition problems with sums of 20 or less, including the facts first graders meet all year: doubles like 6 + 6, near-doubles, and the bridging facts like 9 + 4 that reward making a ten first. The problems are big and uncluttered, so the only challenge on the page is the math itself. A child who works through this sheet steadily is building exactly the fluency that second grade expects to find.

➖ Subtraction to 20

Subtraction is the harder direction for most first graders, so this sheet stays friendly: twenty take-away problems, every starting number 20 or less, and no answer ever below zero. Counting back on fingers or along a number line is a real strategy here, not a crutch — the sheet is built to be finished with whatever tool your child trusts, and to get a little faster week by week.

🔀 Mixed Addition & Subtraction

Real math never announces which operation it is using, and neither does this sheet. Twenty problems alternate between addition and subtraction to 20, so your child has to stop, read the sign, and choose — the single most useful habit this page teaches. Expect it to run slower than the single-skill sheets at first. That pause before each problem is not a problem; it is the learning happening.

🔟 Place Value: Tens and Ones

Place value is the idea underneath everything that comes next: 57 is not a 5 and a 7 sitting together, it is 5 tens and 7 ones. Twenty items practice the translation in both directions — 3 tens + 4 ones = ___ and 57 = ___ tens + ___ ones — until taking a two-digit number apart and putting it back together feels like one easy move. This is the sheet that makes carrying make sense later.

📖 Word Problems

Six short stories turn number skill into thinking: marbles found at the park, birds leaving a fence, muffins sold at a bakery. Each story asks one clear question and leaves room to write the number sentence before the answer. The contexts are everyday ones — joining groups, taking away, seeing how many are left — and solving them is a first taste of how math describes the real world instead of just filling a page.

🖨️ How to Use These Worksheets

1. One sheet a day is a full session. Twenty problems is real work for a six-year-old. Little and often builds fluency; a big stack builds resistance.
2. Tools are allowed. Counters, a number line, fingers — first graders are meant to use them. The tool your child reaches for tells you how they are thinking.
3. Read the sign out loud. On the mixed sheet especially, saying plus or minus before touching the pencil prevents the most common first-grade error: answering the problem they expected instead of the one printed.
4. Check together and ask how. A correct answer with a shaky method and a wrong answer with a good method are both useful information. Ask, don't just mark.

📈 Grade Level Is a Guide, Not a Gate

Worksheets are labeled by grade, but children are not, and the label matters less than the fit. If the to-20 sheets still feel big, there is no penalty for dropping back: our kindergarten math worksheets rebuild the to-10 base these sheets stand on, and a confident week there makes this page easier, not later. The reverse is true too — a first grader who flies through all five sheets is telling you they are ready for two-digit work. The path is a staircase, not a schedule, and standing on a step until it feels solid is how the next one gets climbed.

⏱️ Fluency Without the Stopwatch

Nothing on these pages is timed, and that is a choice. Speed with small facts grows out of strategy, not pressure: counting on from the bigger number (start at 9, count 4 more), making a ten (9 + 4 is 10 + 3), and using doubles (6 + 7 is 6 + 6 plus one). A child who owns those three moves will get fast on their own, because every fact becomes a short walk instead of a long count from zero. Racing a timer before the strategies exist teaches guessing; building the strategies first makes the timer unnecessary.