Adding Doubles 100 to 999 (Horizontal Questions - Full Page)

This basic Adding Doubles worksheet is designed to help kids practice adding doubles, for numbers 100 through 999 with addition questions that change each time you visit. This math worksheet is printable and displays a full page math sheet with Horizontal Addition questions.

With this math sheet generator, you can easily create Adding Doubles 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+101, 102+102, 103+103, 104+104, 105+105, ... 999+999
ANSWER KEY
515 + 515 =
 1030
363 + 363 =
 726
258 + 258 =
 516
781 + 781 =
 1562
478 + 478 =
 956
553 + 553 =
 1106
569 + 569 =
 1138
440 + 440 =
 880
643 + 643 =
 1286
937 + 937 =
 1874
613 + 613 =
 1226
179 + 179 =
 358
735 + 735 =
 1470
488 + 488 =
 976
788 + 788 =
 1576
193 + 193 =
 386
891 + 891 =
 1782
635 + 635 =
 1270
785 + 785 =
 1570
440 + 440 =
 880
892 + 892 =
 1784
100 + 100 =
 200
936 + 936 =
 1872
691 + 691 =
 1382
396 + 396 =
 792
442 + 442 =
 884
972 + 972 =
 1944
106 + 106 =
 212
960 + 960 =
 1920
998 + 998 =
 1996
986 + 986 =
 1972
905 + 905 =
 1810
131 + 131 =
 262
727 + 727 =
 1454
467 + 467 =
 934
411 + 411 =
 822
329 + 329 =
 658
451 + 451 =
 902
132 + 132 =
 264
344 + 344 =
 688
776 + 776 =
 1552
568 + 568 =
 1136
656 + 656 =
 1312
554 + 554 =
 1108
325 + 325 =
 650
183 + 183 =
 366
922 + 922 =
 1844
105 + 105 =
 210
216 + 216 =
 432
560 + 560 =
 1120
867 + 867 =
 1734
436 + 436 =
 872
418 + 418 =
 836
975 + 975 =
 1950
199 + 199 =
 398
495 + 495 =
 990
438 + 438 =
 876
848 + 848 =
 1696
960 + 960 =
 1920
968 + 968 =
 1936

 Check this box to display the answer key

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