Erbijsommen tot 1.000
Optellen
| Oefening 1 | |||||
| 1. | 478 | + | 454 | = |
|
| 2. | 409 | + | 280 | = |
|
| 3. | 415 | + | 376 | = |
|
| 4. | 361 | + | 290 | = |
|
| 5. | 461 | + | 353 | = |
|
| 6. | 389 | + | 143 | = |
|
| 7. | 372 | + | 346 | = |
|
| 8. | 373 | + | 253 | = |
|
| 9. | 243 | + | 221 | = |
|
| 10. | 289 | + | 202 | = |
|
| Oefening 2 | |||||
| 1. | 225 | + | 138 | = |
|
| 2. | 254 | + | 243 | = |
|
| 3. | 446 | + | 138 | = |
|
| 4. | 390 | + | 296 | = |
|
| 5. | 298 | + | 206 | = |
|
| 6. | 391 | + | 246 | = |
|
| 7. | 444 | + | 204 | = |
|
| 8. | 312 | + | 127 | = |
|
| 9. | 370 | + | 313 | = |
|
| 10. | 360 | + | 135 | = |
|
| Oefening 3 | |||||
| 1. | 291 | + | 255 | = |
|
| 2. | 428 | + | 109 | = |
|
| 3. | 389 | + | 339 | = |
|
| 4. | 482 | + | 463 | = |
|
| 5. | 492 | + | 403 | = |
|
| 6. | 391 | + | 180 | = |
|
| 7. | 273 | + | 154 | = |
|
| 8. | 319 | + | 107 | = |
|
| 9. | 361 | + | 302 | = |
|
| 10. | 290 | + | 265 | = |
|
| Oefening 4 | |||||
| 1. | 355 | + | 172 | = |
|
| 2. | 307 | + | 179 | = |
|
| 3. | 457 | + | 133 | = |
|
| 4. | 456 | + | 317 | = |
|
| 5. | 247 | + | 201 | = |
|
| 6. | 279 | + | 195 | = |
|
| 7. | 200 | + | 135 | = |
|
| 8. | 380 | + | 224 | = |
|
| 9. | 430 | + | 276 | = |
|
| 10. | 189 | + | 122 | = |
|