Adding three-digit numbers 100 to 400 (Vertical Questions - Half Page)

This basic Addition worksheet is designed to help kids practice adding three-digit numbers (100 through 400) with addition questions that change each time you visit. This math worksheet is printable and displays a half 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 ... 400+100
  • 100+101, 101+101, 102+101, 103+101, 104+101, 105+101 ... 400+101
  • 100+102, 101+102, 102+102, 103+102, 104+102, 105+102 ... 400+102
  • ...
  • 100+400, 101+400, 102+400, 103+400, 104+400, 105+400 ... 400+400
ANSWER KEY
210
+ 286
496
119
+ 353
472
362
+ 227
589
195
+ 235
430
393
+ 190
583
193
+ 395
588
211
+ 349
560
310
+ 165
475
102
+ 123
225
370
+ 173
543
388
+ 386
774
341
+ 360
701
115
+ 190
305
111
+ 119
230
196
+ 111
307
226
+ 150
376
318
+ 235
553
233
+ 356
589
272
+ 110
382
384
+ 241
625
345
+ 233
578
372
+ 137
509
277
+ 246
523
370
+ 382
752

 Check this box to display the answer key

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