Class 3 Maths Worksheet: Addition and Subtraction

Maths worksheets lesson 17: 3-digit addition and subtraction · Set 560 · 40 sums

The method (Column by column): Line up ones, tens and hundreds. Add from the right; 10 or more → carry 1 to the next column. Subtract from the right; top digit smaller → borrow 1 from the next column. Missing number in an addition = total − the number you know.

1. 1.825 − 639 =
2. 2.A train has 206 people in the front coaches and 278 people in the back coaches. How many people are on the train?
3. 3.? + 670 = 775
4. 4.231 − 140 =
5. 5.333 + 366 =
6. 6.879 − 697 =
7. 7.A train has 294 people in the front coaches and 192 people in the back coaches. How many people are on the train?
8. 8.454 + 297 =
9. 9.873 − ? = 302
10. 10.304 − 121 =
11. 11.483 − ? = 172
12. 12.447 + 353 =
13. 13.234 − 141 =
14. 14.306 + 443 =
15. 15.? − 104 = 244
16. 16.730 − 710 =
17. 17.611 + ? = 882
18. 18.325 + 181 =
19. 19.387 − 277 =
20. 20.853 + 136 =
21. 21.220 − 107 =
22. 22.665 + 193 =
23. 23.A train has 353 people in the front coaches and 547 people in the back coaches. How many people are on the train?
24. 24.A train has 584 people in the front coaches and 261 people in the back coaches. How many people are on the train?
25. 25.623 + ? = 934
26. 26.960 − ? = 218
27. 27.525 − ? = 134
28. 28.710 + 198 =
29. 29.A school has 227 children. 117 of them are girls. How many boys are there?
30. 30.303 − 145 =
31. 31.A train has 251 people in the front coaches and 200 people in the back coaches. How many people are on the train?
32. 32.A school has 362 children. 172 of them are girls. How many boys are there?
33. 33.520 − ? = 108
34. 34.A school has 657 children. 452 of them are girls. How many boys are there?
35. 35.650 + 140 =
36. 36.? − 769 = 187
37. 37.565 − 358 =
38. 38.581 − ? = 397
39. 39.366 + ? = 819
40. 40.A school has 572 children. 285 of them are girls. How many boys are there?

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets