Add Three-Digit Numbers - Worksheet 1
Grade 3•Math•Add Three-Digit Numbers
Aligned to: 3.OA.A.1
Solve each addition problem. The last problems are word problems — read carefully and show your work.
1.
852 + 945 =
2.
880 + 342 =
3.
114 + 729 =
4.
794 + 324 =
5.
512 + 550 =
6.
828 + 527 =
7.
270 + 486 =
8.
343 + 238 =
9.
867 + 421 =
10.
670 + 465 =
11.
539 + 377 =
12.
598 + 909 =
13.
682 + 129 =
14.
Olivia scored 60 points in the first game and 45 points in the second game. How many points did Olivia score altogether?
Show your work:
15.
Sophia read 77 pages on Monday and 57 pages on Tuesday. How many pages did Sophia read in all?
Show your work: