Grade 3 Add & Subtract worksheet
from Gradelings · Name: ______________________
How to explain it
- Line up the ones, tens and hundreds.
- Start with the ones, then tens, then hundreds.
- If a place goes over 9 when adding, regroup to the next place.
Example: 276 + 148 = ? Ones: 6 + 8 = 14. Write 4 and regroup 1 ten. Tens: 7 + 4 + 1 = 12. Write 2 and regroup 1 hundred. Hundreds: 2 + 1 + 1 = 4. Answer: 424
Question 1
About how much is 495 + 112?
- 600
- 500
- 700
- 800
600
Hint: Round each number to the nearest hundred: 495 is close to 500 and 112 is close to 100. 500 + 100 = 600.
Question 2
A farm stand sold 677 apples on Saturday and 317 apples on Sunday. How many apples were sold in all?
🍎answer box
994
Hint: Put them together: 677 + 317. Add each place: hundreds 600 + 300 = 900, tens 70 + 10 = 80, ones 7 + 7 = 14. Then 900 + 80 + 14 = 994.
Question 3
What is 321 − 131?
321 − 131 = ?
- 210
- 180
- 190
- 200
190
Hint: Count up from 131 to 321: +9, +60, +100, +20, +1. Add the jumps: 9 + 60 + 100 + 20 + 1 = 190.
Question 4
What is 482 − 210? Use the jumps.
- 272
- 282
- 372
- 262
272
Hint: Jump back 200 from 482 to 282, then jump back 10 to 272.
Question 5
What is 762 + 81?
762 + 81 = ?
- 743
- 853
- 833
- 843
843
Hint: Add each place: hundreds 700, tens 60 + 80 = 140, ones 2 + 1 = 3. Then 700 + 140 + 3 = 843.
Question 6
Ana's book has 817 pages. Ana has read 442 pages. How many pages are left to read?
📖- 375
- 435
- 385
- 365
375
Hint: Take away to find what's left: 817 − 442. Count up from 442 to 817: +8, +50, +300, +10, +7. Add the jumps: 8 + 50 + 300 + 10 + 7 = 375.
Question 7
What is 384 + 55?
384 + 55 = ?
answer box
439
Hint: Add each place: hundreds 300, tens 80 + 50 = 130, ones 4 + 5 = 9. Then 300 + 130 + 9 = 439.
Question 8
What is 791 − 58?
791 − 58 = ?
answer box
733
Hint: Count up from 58 to 791: +2, +40, +600, +90, +1. Add the jumps: 2 + 40 + 600 + 90 + 1 = 733.
Question 9
What is 387 − 52?
387 − 52 = ?
answer box
335
Hint: Take away each place: hundreds 300 − 0 = 300, tens 80 − 50 = 30, ones 7 − 2 = 5. Together: 335.
Question 10
What is 144 + 250? Use the jumps.
- 384
- 494
- 404
- 394
394
Hint: Jump 200 from 144 to 344, then jump 50 more to 394.
Answer key
- 1. 600
- 2. 994
- 3. 190
- 4. 272
- 5. 843
- 6. 375
- 7. 439
- 8. 733
- 9. 335
- 10. 394
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