| Oefening 1 | |||||
| 1. | 58 ? 52 = 110 |
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| 2. | 8 ? 8 = 64 |
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| 3. | 10 ? 2 = 20 |
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| 4. | 37 ? 14 = 51 |
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| 5. | 79 ? 28 = 51 |
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| 6. | 9 ? 4 = 36 |
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| 7. | 28 ? 15 = 13 |
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| 8. | 38 ? 24 = 14 |
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| 9. | 39 ? 28 = 11 |
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| 10. | 51 ? 35 = 86 |
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| 11. | 59 ? 20 = 79 |
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| 12. | 10 ? 7 = 70 |
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| Oefening 1 | |||||
| 1. | 58 ? 52 = 110 |
×
|
-
|
+
|
|
| 2. | 8 ? 8 = 64 |
+
|
-
|
×
|
|
| 3. | 10 ? 2 = 20 |
×
|
-
|
+
|
|
| 4. | 37 ? 14 = 51 |
-
|
+
|
×
|
|
| 5. | 79 ? 28 = 51 |
×
|
+
|
-
|
|
| 6. | 9 ? 4 = 36 |
-
|
×
|
+
|
|
| 7. | 28 ? 15 = 13 |
×
|
-
|
+
|
|
| 8. | 38 ? 24 = 14 |
×
|
+
|
-
|
|
| 9. | 39 ? 28 = 11 |
×
|
+
|
-
|
|
| 10. | 51 ? 35 = 86 |
+
|
×
|
-
|
|
| 11. | 59 ? 20 = 79 |
-
|
+
|
×
|
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| 12. | 10 ? 7 = 70 |
×
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+
|
-
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|