| Oefening 1 | |||||
| 1. | 15 ? 8 = 120 |
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×
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| 2. | 66 ? 53 = 13 |
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×
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| 3. | 138 ? 137 = 1 |
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×
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| 4. | 12 ? 7 = 84 |
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×
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| 5. | 6 ? 5 = 30 |
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×
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| 6. | 168 ? 52 = 116 |
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×
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| 7. | 15 ? 6 = 90 |
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+
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×
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| 8. | 15 ? 15 = 225 |
×
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+
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| 9. | 10 ? 8 = 80 |
×
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| 10. | 171 ? 111 = 60 |
+
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×
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| 11. | 15 ? 14 = 210 |
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+
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×
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| 12. | 7 ? 7 = 49 |
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+
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×
|
|
| Oefening 1 | |||||
| 1. | 15 ? 8 = 120 |
+
|
×
|
-
|
|
| 2. | 66 ? 53 = 13 |
-
|
×
|
+
|
|
| 3. | 138 ? 137 = 1 |
+
|
-
|
×
|
|
| 4. | 12 ? 7 = 84 |
+
|
-
|
×
|
|
| 5. | 6 ? 5 = 30 |
+
|
×
|
-
|
|
| 6. | 168 ? 52 = 116 |
+
|
-
|
×
|
|
| 7. | 15 ? 6 = 90 |
-
|
+
|
×
|
|
| 8. | 15 ? 15 = 225 |
×
|
-
|
+
|
|
| 9. | 10 ? 8 = 80 |
×
|
-
|
+
|
|
| 10. | 171 ? 111 = 60 |
+
|
-
|
×
|
|
| 11. | 15 ? 14 = 210 |
-
|
+
|
×
|
|
| 12. | 7 ? 7 = 49 |
-
|
+
|
×
|
|