Adding Doubles 100 to 999 (Horizontal Questions - Half Page x 2)

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 two half page math sheets 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
260 + 260 =
 520
717 + 717 =
 1434
522 + 522 =
 1044
259 + 259 =
 518
217 + 217 =
 434
739 + 739 =
 1478
539 + 539 =
 1078
447 + 447 =
 894
805 + 805 =
 1610
924 + 924 =
 1848
824 + 824 =
 1648
447 + 447 =
 894
356 + 356 =
 712
770 + 770 =
 1540
388 + 388 =
 776
381 + 381 =
 762
843 + 843 =
 1686
142 + 142 =
 284
153 + 153 =
 306
669 + 669 =
 1338
149 + 149 =
 298
408 + 408 =
 816
637 + 637 =
 1274
295 + 295 =
 590
182 + 182 =
 364
611 + 611 =
 1222
557 + 557 =
 1114
668 + 668 =
 1336
961 + 961 =
 1922
730 + 730 =
 1460
672 + 672 =
 1344
826 + 826 =
 1652
316 + 316 =
 632
412 + 412 =
 824
824 + 824 =
 1648
725 + 725 =
 1450
692 + 692 =
 1384
634 + 634 =
 1268
971 + 971 =
 1942
323 + 323 =
 646
732 + 732 =
 1464
529 + 529 =
 1058

 Check this box to display the answer key

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