Adding three-digit numbers 100 to 300 (Vertical Questions - Full Page)

This basic Addition worksheet is designed to help kids practice adding three-digit numbers (100 through 300) with addition questions that change each time you visit. This math worksheet is printable and displays a full 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 ... 300+100
  • 100+101, 101+101, 102+101, 103+101, 104+101, 105+101 ... 300+101
  • 100+102, 101+102, 102+102, 103+102, 104+102, 105+102 ... 300+102
  • ...
  • 100+300, 101+300, 102+300, 103+300, 104+300, 105+300 ... 300+300
ANSWER KEY
178
+ 274
452
258
+ 218
476
131
+ 281
412
139
+ 149
288
144
+ 278
422
140
+ 132
272
162
+ 281
443
280
+ 189
469
150
+ 249
399
108
+ 265
373
146
+ 179
325
178
+ 102
280
222
+ 145
367
250
+ 146
396
165
+ 290
455
241
+ 260
501
194
+ 159
353
199
+ 207
406
137
+ 163
300
229
+ 234
463
130
+ 262
392
135
+ 202
337
270
+ 258
528
165
+ 107
272
249
+ 251
500
120
+ 119
239
182
+ 101
283
160
+ 109
269
255
+ 104
359
117
+ 276
393
297
+ 145
442
270
+ 257
527
281
+ 268
549
257
+ 152
409
263
+ 111
374
126
+ 100
226
207
+ 121
328
234
+ 224
458
102
+ 236
338
128
+ 274
402
229
+ 274
503
222
+ 282
504
127
+ 183
310
258
+ 250
508
196
+ 283
479
148
+ 250
398
147
+ 229
376
230
+ 271
501
110
+ 292
402
114
+ 142
256
188
+ 139
327
178
+ 181
359
117
+ 268
385
158
+ 175
333
116
+ 213
329
223
+ 192
415
273
+ 171
444
110
+ 280
390
240
+ 154
394
165
+ 293
458
199
+ 203
402
237
+ 183
420
158
+ 144
302
300
+ 252
552

 Check this box to display the answer key

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