| Oefening 1 | |||||
| 1. | 7 ? 4 = 28 |
×
|
-
|
+
|
|
| 2. | 71 ? 49 = 120 |
-
|
+
|
×
|
|
| 3. | 7 ? 7 = 49 |
+
|
-
|
×
|
|
| 4. | 69 ? 24 = 93 |
+
|
-
|
×
|
|
| 5. | 33 ? 12 = 21 |
×
|
+
|
-
|
|
| 6. | 80 ? 37 = 117 |
-
|
×
|
+
|
|
| 7. | 95 ? 17 = 112 |
-
|
+
|
×
|
|
| 8. | 87 ? 47 = 134 |
-
|
×
|
+
|
|
| 9. | 7 ? 6 = 42 |
×
|
+
|
-
|
|
| 10. | 7 ? 6 = 42 |
×
|
-
|
+
|
|
| 11. | 68 ? 62 = 6 |
+
|
×
|
-
|
|
| 12. | 96 ? 86 = 182 |
+
|
×
|
-
|
|
| Oefening 1 | |||||
| 1. | 7 ? 4 = 28 |
×
|
-
|
+
|
|
| 2. | 71 ? 49 = 120 |
-
|
+
|
×
|
|
| 3. | 7 ? 7 = 49 |
+
|
-
|
×
|
|
| 4. | 69 ? 24 = 93 |
+
|
-
|
×
|
|
| 5. | 33 ? 12 = 21 |
×
|
+
|
-
|
|
| 6. | 80 ? 37 = 117 |
-
|
×
|
+
|
|
| 7. | 95 ? 17 = 112 |
-
|
+
|
×
|
|
| 8. | 87 ? 47 = 134 |
-
|
×
|
+
|
|
| 9. | 7 ? 6 = 42 |
×
|
+
|
-
|
|
| 10. | 7 ? 6 = 42 |
×
|
-
|
+
|
|
| 11. | 68 ? 62 = 6 |
+
|
×
|
-
|
|
| 12. | 96 ? 86 = 182 |
+
|
×
|
-
|
|