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
792 + 792 =
 1584
963 + 963 =
 1926
302 + 302 =
 604
957 + 957 =
 1914
460 + 460 =
 920
629 + 629 =
 1258
404 + 404 =
 808
259 + 259 =
 518
424 + 424 =
 848
942 + 942 =
 1884
861 + 861 =
 1722
683 + 683 =
 1366
529 + 529 =
 1058
857 + 857 =
 1714
552 + 552 =
 1104
965 + 965 =
 1930
695 + 695 =
 1390
995 + 995 =
 1990
157 + 157 =
 314
809 + 809 =
 1618
345 + 345 =
 690
129 + 129 =
 258
222 + 222 =
 444
581 + 581 =
 1162
303 + 303 =
 606
618 + 618 =
 1236
533 + 533 =
 1066
300 + 300 =
 600
461 + 461 =
 922
790 + 790 =
 1580
721 + 721 =
 1442
946 + 946 =
 1892
157 + 157 =
 314
531 + 531 =
 1062
846 + 846 =
 1692
319 + 319 =
 638
892 + 892 =
 1784
952 + 952 =
 1904
229 + 229 =
 458
588 + 588 =
 1176
779 + 779 =
 1558
925 + 925 =
 1850
400 + 400 =
 800
842 + 842 =
 1684
169 + 169 =
 338
445 + 445 =
 890
804 + 804 =
 1608
876 + 876 =
 1752
555 + 555 =
 1110
866 + 866 =
 1732
744 + 744 =
 1488
271 + 271 =
 542
594 + 594 =
 1188
750 + 750 =
 1500
391 + 391 =
 782
691 + 691 =
 1382
815 + 815 =
 1630
724 + 724 =
 1448
374 + 374 =
 748
879 + 879 =
 1758

 Check this box to display the answer key

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