| Oefening 1 | |||||
| 1. | 75 ? 30 = 105 |
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| 2. | 10 ? 5 = 50 |
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| 3. | 9 ? 4 = 36 |
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| 4. | 9 ? 5 = 45 |
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| 5. | 9 ? 1 = 9 |
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| 6. | 9 ? 8 = 72 |
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| 7. | 89 ? 68 = 157 |
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| 8. | 77 ? 28 = 49 |
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| 9. | 91 ? 56 = 147 |
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| 10. | 26 ? 18 = 8 |
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| 11. | 6 ? 3 = 18 |
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×
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| 12. | 8 ? 8 = 64 |
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×
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| Oefening 1 | |||||
| 1. | 75 ? 30 = 105 |
×
|
-
|
+
|
|
| 2. | 10 ? 5 = 50 |
×
|
+
|
-
|
|
| 3. | 9 ? 4 = 36 |
+
|
×
|
-
|
|
| 4. | 9 ? 5 = 45 |
-
|
×
|
+
|
|
| 5. | 9 ? 1 = 9 |
×
|
-
|
+
|
|
| 6. | 9 ? 8 = 72 |
×
|
-
|
+
|
|
| 7. | 89 ? 68 = 157 |
-
|
×
|
+
|
|
| 8. | 77 ? 28 = 49 |
×
|
-
|
+
|
|
| 9. | 91 ? 56 = 147 |
-
|
×
|
+
|
|
| 10. | 26 ? 18 = 8 |
+
|
×
|
-
|
|
| 11. | 6 ? 3 = 18 |
+
|
×
|
-
|
|
| 12. | 8 ? 8 = 64 |
+
|
-
|
×
|
|