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💬 Adding Within 100: Word Problems (1.NBT.C.4)

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Add within 100, including a two-digit and a one-digit number, and a two-digit number and a multiple of 10. Read each problem. Draw or write to solve. Label your answer.

1. Amara read 24 pages, then 50 more. How many pages in all?
Work
Answer: ______________
2. Mia read 17 pages, then 1 more. How many pages in all?
Work
Answer: ______________
3. Mia read 29 pages, then 50 more. How many pages in all?
Work
Answer: ______________
4. Zara read 71 pages, then 7 more. How many pages in all?
Work
Answer: ______________
5. Leo read 58 pages, then 10 more. How many pages in all?
Work
Answer: ______________
6. Diego read 41 pages, then 1 more. How many pages in all?
Work
Answer: ______________
Answer key: 1) 74 · 2) 18 · 3) 79 · 4) 78 · 5) 68 · 6) 42
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Worksheets › Grade 1 Math › Adding Within 100 › Adding Within 100

Grade 1 (ages 6–7)Numbers & mathsFree printable PDF

About this grade 1 worksheet

Free Grade 1 math worksheet (Common Core 1.NBT.C.4): adding within 100 — real-world word problems, with answer key. Skill: Add within 100, including a two-digit and a one-digit number, and a two-digit number and a multiple of 10. Level: Grade 1 — also suits Year 2 (UK).

For teachers: skills & standards

Frequently asked questions

Is this worksheet free?

Yes — it is free to print for home or the classroom. Sign in with a free Pagine account, then use the Print button or save it as a PDF.

What age is it for?

It is designed for Grade 1 (ages 6–7), but use it with any child who is ready.

What skills does it build?

Add within 100, including a two-digit and a one-digit number, and a two-digit number and a multiple of 10.

Where can I find grade 1 books to read with it?

Pagine's free library has 20,000+ children's books you can read in the Pagine e-reader or the free Pagine app — sorted by age and grade, with free audiobooks too.

More “Adding Within 100” printables (1.nbt.c.4: add within 100, including a two-digit and a one-digit number, and a two-digit number and a multiple of 10)

Adding Within 100: Practice A (1.NBT.C.4) · Adding Within 100: Practice B (1.NBT.C.4) · Adding Within 100: Show Your Thinking (1.NBT.C.4) · Adding Within 100: Quick Check (1.NBT.C.4)

All 5 adding within 100 sheets → · Grade 1 Math: all 10 skills → · All Common Core grades

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