| Oefening 1 | |||||
| 1. | 156 ? 67 = 89 |
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×
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| 2. | 15 ? 10 = 150 |
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×
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| 3. | 9 ? 8 = 72 |
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×
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| 4. | 161 ? 89 = 250 |
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×
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| 5. | 177 ? 92 = 269 |
×
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| 6. | 91 ? 83 = 8 |
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×
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| 7. | 11 ? 6 = 66 |
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×
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| 8. | 15 ? 9 = 135 |
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×
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| 9. | 12 ? 11 = 132 |
×
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| 10. | 140 ? 120 = 20 |
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×
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| 11. | 15 ? 14 = 210 |
+
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×
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| 12. | 7 ? 7 = 49 |
+
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×
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|
|
| Oefening 1 | |||||
| 1. | 156 ? 67 = 89 |
-
|
×
|
+
|
|
| 2. | 15 ? 10 = 150 |
+
|
×
|
-
|
|
| 3. | 9 ? 8 = 72 |
+
|
×
|
-
|
|
| 4. | 161 ? 89 = 250 |
+
|
×
|
-
|
|
| 5. | 177 ? 92 = 269 |
×
|
+
|
-
|
|
| 6. | 91 ? 83 = 8 |
+
|
-
|
×
|
|
| 7. | 11 ? 6 = 66 |
+
|
-
|
×
|
|
| 8. | 15 ? 9 = 135 |
-
|
×
|
+
|
|
| 9. | 12 ? 11 = 132 |
×
|
+
|
-
|
|
| 10. | 140 ? 120 = 20 |
+
|
-
|
×
|
|
| 11. | 15 ? 14 = 210 |
+
|
×
|
-
|
|
| 12. | 7 ? 7 = 49 |
+
|
×
|
-
|
|