Kies het goede teken
Getallen
| Oefening 1 | |||||
| 1. | 20 ? 19 = 380 |
+
|
-
|
×
|
|
| 2. | 178 ? 107 = 285 |
×
|
+
|
-
|
|
| 3. | 808 ? 166 = 974 |
×
|
-
|
+
|
|
| 4. | 770 ? 173 = 943 |
+
|
×
|
-
|
|
| 5. | 20 ? 17 = 340 |
-
|
×
|
+
|
|
| 6. | 910 ? 158 = 752 |
+
|
×
|
-
|
|
| 7. | 474 ? 66 = 540 |
+
|
×
|
-
|
|
| 8. | 16 ? 11 = 176 |
×
|
+
|
-
|
|
| 9. | 289 ? 221 = 68 |
-
|
+
|
×
|
|
| 10. | 16 ? 16 = 256 |
-
|
×
|
+
|
|
| 11. | 126 ? 105 = 231 |
-
|
×
|
+
|
|
| 12. | 688 ? 221 = 909 |
×
|
-
|
+
|
|