Adding three-digit numbers 100 to 800 (Vertical Questions - Full Page)

This basic Addition worksheet is designed to help kids practice adding three-digit numbers (100 through 800) with addition questions that change each time you visit. This math worksheet is printable and displays a full page math sheet 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 ... 800+100
  • 100+101, 101+101, 102+101, 103+101, 104+101, 105+101 ... 800+101
  • 100+102, 101+102, 102+102, 103+102, 104+102, 105+102 ... 800+102
  • ...
  • 100+800, 101+800, 102+800, 103+800, 104+800, 105+800 ... 800+800
ANSWER KEY
698
+ 207
905
746
+ 540
1286
210
+ 554
764
624
+ 689
1313
151
+ 363
514
126
+ 120
246
252
+ 686
938
424
+ 586
1010
613
+ 574
1187
520
+ 489
1009
181
+ 466
647
575
+ 479
1054
386
+ 379
765
233
+ 532
765
192
+ 722
914
501
+ 224
725
796
+ 751
1547
353
+ 351
704
102
+ 654
756
226
+ 305
531
623
+ 170
793
228
+ 143
371
563
+ 268
831
474
+ 644
1118
397
+ 106
503
690
+ 157
847
171
+ 388
559
393
+ 689
1082
435
+ 777
1212
215
+ 649
864
269
+ 354
623
491
+ 173
664
468
+ 599
1067
612
+ 755
1367
215
+ 426
641
724
+ 324
1048
475
+ 416
891
164
+ 660
824
695
+ 303
998
764
+ 592
1356
186
+ 163
349
554
+ 620
1174
616
+ 408
1024
591
+ 204
795
175
+ 235
410
223
+ 470
693
502
+ 334
836
258
+ 133
391
409
+ 125
534
749
+ 267
1016
656
+ 793
1449
776
+ 653
1429
623
+ 792
1415
790
+ 620
1410
152
+ 345
497
187
+ 380
567
149
+ 696
845
579
+ 103
682
419
+ 599
1018
396
+ 136
532
538
+ 341
879
305
+ 618
923
302
+ 562
864
127
+ 515
642

 Check this box to display the answer key

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