🧮 Add & Subtract Within 1,000

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Name:

Date:

Solve each problem. Line up the digits by place value.

1.
300
− 168

2.
443
− 192

3.
572
− 159

4.
192
+ 322

5.
357
+ 500

6.
815
− 588

7.
557
+ 427

8.
615
+ 215

9.
619
− 564

10.
834
− 704

11.
528
+ 434

12.
236
+ 546

13.
684
+ 119

14.
481
− 291

15.
612
− 409

Answer key: 1. 132 · 2. 251 · 3. 413 · 4. 514 · 5. 857 · 6. 227 · 7. 984 · 8. 830 · 9. 55 · 10. 130 · 11. 962 · 12. 782 · 13. 803 · 14. 190 · 15. 203

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Worksheets › Grade 3 › Numbers & maths

Grade 3 (ages 8–9)Numbers & mathsFree printable PDF

About this grade 3 worksheet

Free 3rd grade worksheet: 15 mixed addition and subtraction problems within 1,000 with regrouping, with answer key. Skill: Fluently adding and subtracting within 1,000. Level: Grade 3 — also suits Year 4 (UK).

For teachers: skills & standards

CCSS 3.NBT.A.2: Fluently add and subtract within 1,000
Works as a morning-work page, a centre/station activity, homework or an early-finisher task.

Frequently asked questions

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What age is it for?

It is designed for Grade 3 (ages 8–9), but use it with any child who is ready.

What skills does it build?

Fluently adding and subtracting within 1,000.

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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.

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Number Tracing 0–10 · Number 1 Worksheet: Trace, Count & Colour · Number 2 Worksheet: Trace, Count & Colour · Number 3 Worksheet: Trace, Count & Colour · Number 4 Worksheet: Trace, Count & Colour · Number 5 Worksheet: Trace, Count & Colour · Number 6 Worksheet: Trace, Count & Colour · Number 7 Worksheet: Trace, Count & Colour · Number 8 Worksheet: Trace, Count & Colour · Number 9 Worksheet: Trace, Count & Colour

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