Free. Exclusive. Just for you.
Four unique services that make learning easier, faster, and smarter - only on our website.

Comprehensive practice sheet featuring 20 mixed three-digit addition and subtraction problems to help students build fluency.

Printable math worksheet featuring 20 three-digit addition and subtraction problems for elementary students.

Printable math worksheet featuring 20 three-digit addition and subtraction problems for elementary students.

JPG 742×1050 159.1 KB Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #310321
Show Answer Key & Explanations Step-by-step solution for: Addition and Subtraction Worksheets for Grade 3 with Answer Key
Let's solve each of the 20 addition and subtraction problems on the worksheet step by step. I'll go through each one carefully, showing the calculations.

---

1. 896 + 787


```
896
+ 787
-----
1683
```
Answer: 1683

---

2. 954 - 556


```
954
- 556
-----
398
```
Answer: 398

---

3. 653 - 378


```
653
- 378
-----
275
```
Answer: 275

---

4. 442 - 391


```
442
- 391
-----
51
```
Answer: 51

---

5. 598 + 998


```
598
+ 998
-----
1596
```
Answer: 1596

---

6. 835 - 368


```
835
- 368
-----
467
```
Answer: 467

---

7. 811 - 385


```
811
- 385
-----
426
```
Answer: 426

---

8. 795 - 217


```
795
- 217
-----
578
```
Answer: 578

---

9. 996 - 674


```
996
- 674
-----
322
```
Answer: 322

---

10. 492 + 908


```
492
+ 908
-----
1400
```
Answer: 1400

---

11. 669 - 245


```
669
- 245
-----
424
```
Answer: 424

---

12. 366 - 198


```
366
- 198
-----
168
```
Answer: 168

---

13. 178 + 444


```
178
+ 444
-----
622
```
Answer: 622

---

14. 693 - 398


```
693
- 398
-----
295
```
Answer: 295

---

15. 999 - 754


```
999
- 754
-----
245
```
Answer: 245

---

16. 549 - 255


```
549
- 255
-----
294
```
Answer: 294

---

17. 941 + 735


```
941
+ 735
-----
1676
```
Answer: 1676

---

18. 396 + 854


```
396
+ 854
-----
1250
```
Answer: 1250

---

19. 849 - 207


```
849
- 207
-----
642
```
Answer: 642

---

20. 572 + 998


```
572
+ 998
-----
1570
```
Answer: 1570

---

Final Answers:


1. 1683
2. 398
3. 275
4. 51
5. 1596
6. 467
7. 426
8. 578
9. 322
10. 1400
11. 424
12. 168
13. 622
14. 295
15. 245
16. 294
17. 1676
18. 1250
19. 642
20. 1570

---

All problems solved! Let me know if you'd like this in a printable format or need explanations for any specific problem.
Parent Tip: Review the logic above to help your child master the concept of year 3 subtraction worksheet.
Print Download

How to use

Click Print to open a print-ready version directly in your browser, or use Download to save the file to your device. The ⭐ Answer button generates an AI answer key instantly - useful for teachers who need a quick reference. Need a different version? Our AI Worksheet Generator lets you create a custom worksheet on any topic in seconds.

(view all year 3 subtraction worksheet)

Third Grade Subtraction Worksheet Printable | Hojas de matemáticas ...
Grade 3 Subtraction Worksheets | Free Worksheets | Printables
Subtract by adjusting - Subtraction Maths Worksheets for Year 3 ...
Addition and Subtraction Worksheets for Grade 3 with Answer Key
Grade 4 Subtraction Worksheets | Free Printables | Math Worksheets
Subtraction Worksheet Worksheet for 1st Grade | Lesson Planet
Addition and Subtraction Worksheets - Year 3 - Primary Resource
Third Grade Subtraction Worksheets
Maths Subtraction Worksheet 6 Grade 3
3 Digit Spring Subtraction Math Worksheet - Twisty Noodle