Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 640 ? 181 = 821 |
×
|
+
|
-
|
|
| 2. | 15 ? 13 = 195 |
×
|
-
|
+
|
|
| 3. | 18 ? 16 = 288 |
-
|
×
|
+
|
|
| 4. | 509 ? 70 = 579 |
-
|
×
|
+
|
|
| 5. | 992 ? 228 = 1.220 |
×
|
-
|
+
|
|
| 6. | 20 ? 17 = 340 |
+
|
×
|
-
|
|
| 7. | 965 ? 309 = 656 |
-
|
+
|
×
|
|
| 8. | 15 ? 13 = 195 |
×
|
-
|
+
|
|
| 9. | 494 ? 471 = 23 |
+
|
×
|
-
|
|
| 10. | 547 ? 295 = 252 |
-
|
×
|
+
|
|
| 11. | 776 ? 192 = 968 |
+
|
×
|
-
|
|
| 12. | 904 ? 624 = 280 |
+
|
-
|
×
|
|