There are 113 such pairs of 3 digit whole numbers that sum to 425:
100 + 325
101 + 324
102 + 323
103 + 322
104 + 321
105 + 320
106 + 319
107 + 318
108 + 317
109 + 316
110 + 315
111 + 314
112 + 313
113 + 312
114 + 311
115 + 310
116 + 309
117 + 308
118 + 307
119 + 306
120 + 305
121 + 304
122 + 303
123 + 302
124 + 301
125 + 300
126 + 299
127 + 298
128 + 297
129 + 296
130 + 295
131 + 294
132 + 293
133 + 292
134 + 291
135 + 290
136 + 289
137 + 288
138 + 287
139 + 286
140 + 285
141 + 284
142 + 283
143 + 282
144 + 281
145 + 280
146 + 279
147 + 278
148 + 277
149 + 276
150 + 275
151 + 274
152 + 273
153 + 272
154 + 271
155 + 270
156 + 269
157 + 268
158 + 267
159 + 266
160 + 265
161 + 264
162 + 263
163 + 262
164 + 261
165 + 260
166 + 259
167 + 258
168 + 257
169 + 256
170 + 255
171 + 254
172 + 253
173 + 252
174 + 251
175 + 250
176 + 249
177 + 248
178 + 247
179 + 246
180 + 245
181 + 244
182 + 243
183 + 242
184 + 241
185 + 240
186 + 239
187 + 238
188 + 237
189 + 236
190 + 235
191 + 234
192 + 233
193 + 232
194 + 231
195 + 230
196 + 229
197 + 228
198 + 227
199 + 226
200 + 225
201 + 224
202 + 223
203 + 222
204 + 221
205 + 220
206 + 219
207 + 218
208 + 217
209 + 216
210 + 215
211 + 214
212 + 213
It is easier to simply add two one-digit numbers than to mess about with estimation!
To make the list of two-digit numbers with digits that add up to 10, first write the pairs of single-digit integers that add up to 10. They are (1,9), (2,8), (3,7), (4,6), (5,5). Then recognize that each of these pairs of numbers, except 5, can be combined in two different ways to make two-digit numbers that satisfy the problem. 19 and 91 28 and 82 37 and 73 46 and 64 55 So there are nine two-digit numbers with digits that add up to 10.
No.
Well, butter my biscuits! The two consecutive 4-digit numbers that add up to 9173 are 4586 and 4587. It's as simple as that, sugar!
2000.The smallest four-digit number there can be is 1000. So, add 1000 and 1000 to get 2000, then least sum you can get when adding two four-digit numbers.
You line up the last numbers and then add it!
It is easier to simply add two one-digit numbers than to mess about with estimation!
To multiply two digit numbers, multiply each place value of a factor by each place value digit and add the results.
Add the two greatest possible four digit numbers. 9999 + 9999
Idont know
To make the list of two-digit numbers with digits that add up to 10, first write the pairs of single-digit integers that add up to 10. They are (1,9), (2,8), (3,7), (4,6), (5,5). Then recognize that each of these pairs of numbers, except 5, can be combined in two different ways to make two-digit numbers that satisfy the problem. 19 and 91 28 and 82 37 and 73 46 and 64 55 So there are nine two-digit numbers with digits that add up to 10.
No.
Well, butter my biscuits! The two consecutive 4-digit numbers that add up to 9173 are 4586 and 4587. It's as simple as that, sugar!
No, when you add a two-digit number to another two-digit number, the largest sum you can get is 99 + 99 = 198, which is a three-digit number. In order to get a four-digit number, you would need to add at least a three-digit number to another three-digit number, such as 100 + 100 = 200.
2000.The smallest four-digit number there can be is 1000. So, add 1000 and 1000 to get 2000, then least sum you can get when adding two four-digit numbers.
Two-digit prime numbers whose digits add up to 10 are:193773
2222