Grade 1 Adding Tens and Hundreds Worksheets
Mental jumps: counting on in tens or hundreds and adding a whole one.
Every sheet below is generated fresh with a matching answer key. Pick one of the three levels, preview it, and print or download the PDF — no account, no watermark. For the other grade 1 addition skills, see all addition worksheets.
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Addition · Grade 1
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Grade 1 · 2 pages · A4What each level generates
Grade 1 adding tens and hundreds — the exact skill behind each difficulty setting, straight from the generator.
- Level 1Count on in tens
- Level 2Add ten
- Level 3How many tens
Grade levels follow the progression common to most English-language curricula — not one specific national curriculum. Every level shows exactly what it generates, so you can check the fit with your own program. See the full scope & sequence →
More Grade 1 addition skills
Each one generates a different kind of question, with its own three levels and answer key.
- Make Ten to AddBridging: fill up to the next ten first, then add whatever is left over.
- Add Without RegroupingColumn addition where every column stays under ten — nothing to carry.
- Missing NumberNumber bonds: find the part that has been hidden from the sum.
- Addition StoriesWord problems: putting two amounts together, joining more on, and combining three.
Frequently asked questions
▸What addition should a Grade 1 student know?
By year-end, most curricula expect fluency with sums to 10 and reliable addition within 20 using strategies like counting on and making ten. The Make Ten to Add skill drills that strategy directly, and Add Without Regrouping carries the same year on into column work.
▸How many problems should a 6-year-old do per sheet?
10–15 works well. Set the count with the stepper — short daily sheets beat one long weekly session for building fact fluency.
▸How does the answer key work?
Tick the answer key option before you download. The key prints on a separate page with numbered answers, so you can hold it back while your child works and check together afterwards.
▸Can two children get different worksheets at the same level?
Yes — press Shuffle between prints. Each press generates a brand-new problem set at the same skill and level, and each version has its own link if you want to reprint either one exactly.
▸Will this match what my child does at school?
The skills offered here — making ten, column addition without regrouping, adding whole tens, missing numbers and word problems — mirror the sequence most English-language curricula use, so the sheets slot alongside almost any Grade 1 program.