Class 3 Maths Worksheet: Addition and Subtraction

Maths worksheets lesson 17: 3-digit addition and subtraction · Set 916 · 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. 1.348 − 188 =
2. 2.? − 372 = 309
3. 3.593 + 304 =
4. 4.363 − ? = 9
5. 5.333 + ? = 654
6. 6.313 − 210 =
7. 7.408 + 476 =
8. 8.284 + 362 =
9. 9.A train has 867 people in the front coaches and 110 people in the back coaches. How many people are on the train?
10. 10.774 + ? = 919
11. 11.403 + ? = 527
12. 12.450 − ? = 138
13. 13.A train has 272 people in the front coaches and 312 people in the back coaches. How many people are on the train?
14. 14.936 − ? = 587
15. 15.A school has 325 children. 170 of them are girls. How many boys are there?
16. 16.A school has 775 children. 643 of them are girls. How many boys are there?
17. 17.A train has 241 people in the front coaches and 276 people in the back coaches. How many people are on the train?
18. 18.110 + ? = 742
19. 19.218 + 652 =
20. 20.746 − 119 =
21. 21.328 − 114 =
22. 22.278 + 584 =
23. 23.884 + 106 =
24. 24.505 − 441 =
25. 25.589 − 313 =
26. 26.345 − 140 =
27. 27.687 + 205 =
28. 28.695 − ? = 595
29. 29.956 − 602 =
30. 30.319 − 104 =
31. 31.864 − 646 =
32. 32.? + 169 = 459
33. 33.285 + 241 =
34. 34.A train has 778 people in the front coaches and 171 people in the back coaches. How many people are on the train?
35. 35.A school has 507 children. 466 of them are girls. How many boys are there?
36. 36.? − 126 = 470
37. 37.774 + ? = 930
38. 38.A school has 506 children. 152 of them are girls. How many boys are there?
39. 39.878 − 571 =
40. 40.124 + 438 =

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