Adding three-digit numbers 100 to 999 (Vertical Questions - Half Page x 2)

This basic Addition worksheet is designed to help kids practice adding three-digit numbers (100 through 999) with addition questions that change each time you visit. This math worksheet is printable and displays two half page math sheets with Vertical Addition questions.

With this math sheet generator, you can easily create Addition worksheets that are never the same and always different, providing you with an unlimited supply of math sheets to use in the classroom or at home.

Each math sheet also has an optional answer key checkbox that you can select, if you wish to print an answer key to go along with your math worksheet. And there are six different question styles to choose from, as listed below.

Possible Questions:

The possible addition questions on this math worksheet are:

  • 100+100, 101+100, 102+100, 103+100, 104+100, 105+100 ... 999+100
  • 100+101, 101+101, 102+101, 103+101, 104+101, 105+101 ... 999+101
  • 100+102, 101+102, 102+102, 103+102, 104+102, 105+102 ... 999+102
  • ...
  • 100+999, 101+999, 102+999, 103+999, 104+999, 105+999 ... 999+999
ANSWER KEY
490
+ 899
1389
613
+ 835
1448
872
+ 607
1479
522
+ 448
970
559
+ 787
1346
802
+ 462
1264
120
+ 751
871
785
+ 557
1342
940
+ 297
1237
104
+ 227
331
117
+ 904
1021
675
+ 816
1491
734
+ 604
1338
917
+ 873
1790
285
+ 880
1165
682
+ 158
840
294
+ 322
616
433
+ 598
1031
386
+ 462
848
438
+ 331
769
361
+ 956
1317
514
+ 525
1039
975
+ 293
1268
900
+ 147
1047
965
+ 604
1569
689
+ 237
926
860
+ 927
1787
614
+ 467
1081
993
+ 362
1355
540
+ 468
1008
335
+ 666
1001
798
+ 278
1076
828
+ 182
1010
930
+ 277
1207
846
+ 318
1164
162
+ 212
374
991
+ 486
1477
283
+ 811
1094
177
+ 731
908
120
+ 544
664
546
+ 317
863
735
+ 400
1135
262
+ 294
556
511
+ 163
674
873
+ 489
1362
147
+ 418
565
822
+ 884
1706
773
+ 732
1505

 Check this box to display the answer key

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