| Oefening 1 | |||||
| 1. | 11 ? 7 = 77 |
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| 2. | 179 ? 177 = 2 |
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| 3. | 9 ? 8 = 72 |
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| 4. | 10 ? 7 = 70 |
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| 5. | 15 ? 6 = 90 |
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×
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| 6. | 12 ? 6 = 72 |
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| 7. | 117 ? 98 = 215 |
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| 8. | 133 ? 120 = 13 |
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| 9. | 185 ? 153 = 338 |
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| 10. | 71 ? 58 = 129 |
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| 11. | 14 ? 5 = 70 |
×
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| 12. | 14 ? 9 = 126 |
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×
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| Oefening 1 | |||||
| 1. | 11 ? 7 = 77 |
×
|
+
|
-
|
|
| 2. | 179 ? 177 = 2 |
×
|
-
|
+
|
|
| 3. | 9 ? 8 = 72 |
-
|
+
|
×
|
|
| 4. | 10 ? 7 = 70 |
-
|
+
|
×
|
|
| 5. | 15 ? 6 = 90 |
+
|
-
|
×
|
|
| 6. | 12 ? 6 = 72 |
×
|
-
|
+
|
|
| 7. | 117 ? 98 = 215 |
-
|
×
|
+
|
|
| 8. | 133 ? 120 = 13 |
×
|
+
|
-
|
|
| 9. | 185 ? 153 = 338 |
×
|
+
|
-
|
|
| 10. | 71 ? 58 = 129 |
×
|
+
|
-
|
|
| 11. | 14 ? 5 = 70 |
×
|
+
|
-
|
|
| 12. | 14 ? 9 = 126 |
+
|
-
|
×
|
|