Adding Doubles+1, 100 to 999 (Vertical Questions - Half Page x 2)

This basic Adding Doubles plus one worksheet is designed to help kids practice adding doubles+1, for 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 Adding Doubles+1 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+101, 101+102, 102+103, 103+104, 104+105, 105+106, ... 998+999
  • 101+100, 102+101, 103+102, 104+103, 105+104, 106+105, ... 999+998
ANSWER KEY
729
+ 730
1459
804
+ 803
1607
439
+ 438
877
746
+ 747
1493
833
+ 834
1667
720
+ 719
1439
341
+ 342
683
554
+ 553
1107
873
+ 872
1745
204
+ 203
407
541
+ 542
1083
981
+ 980
1961
312
+ 311
623
636
+ 637
1273
539
+ 540
1079
441
+ 440
881
918
+ 919
1837
178
+ 179
357
851
+ 850
1701
583
+ 584
1167
715
+ 716
1431
273
+ 272
545
268
+ 267
535
699
+ 700
1399
782
+ 783
1565
537
+ 536
1073
612
+ 611
1223
506
+ 507
1013
399
+ 398
797
130
+ 131
261
708
+ 707
1415
220
+ 221
441
771
+ 772
1543
953
+ 954
1907
395
+ 394
789
759
+ 758
1517
641
+ 642
1283
286
+ 287
573
357
+ 356
713
389
+ 388
777
167
+ 166
333
122
+ 123
245
810
+ 811
1621
727
+ 726
1453
466
+ 465
931
341
+ 342
683
702
+ 703
1405
449
+ 448
897

 Check this box to display the answer key

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