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3rd Grade
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Three-Digit Addition
Three-Digit Addition Worksheets
Name:
Date:
Three-Digit Addition
Solve each problem. Show your work!
1.
601
102
+
2.
521
884
+
3.
874
324
+
4.
590
676
+
5.
440
895
+
6.
464
491
+
7.
211
422
+
8.
298
223
+
9.
491
153
+
10.
415
713
+
11.
328
252
+
12.
134
441
+
13.
572
738
+
14.
335
264
+
15.
626
536
+
16.
706
254
+
17.
676
463
+
18.
716
895
+
19.
291
705
+
20.
222
358
+
703
1405
1198
1266
1335
955
633
521
644
1128
580
575
1310
599
1162
960
1139
1611
996
580
fun
children.com
3rd Grade · Sheet #1