| Oefening 1 | |||||
| 1. | 164 ? 110 = 274 |
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| 2. | 131 ? 103 = 234 |
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| 3. | 61 ? 54 = 115 |
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| 4. | 140 ? 55 = 85 |
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×
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| 5. | 10 ? 5 = 50 |
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| 6. | 136 ? 114 = 250 |
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×
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| 7. | 15 ? 13 = 195 |
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×
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| 8. | 14 ? 13 = 182 |
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| 9. | 174 ? 168 = 6 |
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| 10. | 116 ? 64 = 52 |
×
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| 11. | 100 ? 61 = 39 |
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×
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| 12. | 142 ? 79 = 63 |
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×
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+
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|
| Oefening 1 | |||||
| 1. | 164 ? 110 = 274 |
×
|
-
|
+
|
|
| 2. | 131 ? 103 = 234 |
+
|
×
|
-
|
|
| 3. | 61 ? 54 = 115 |
×
|
-
|
+
|
|
| 4. | 140 ? 55 = 85 |
+
|
-
|
×
|
|
| 5. | 10 ? 5 = 50 |
×
|
-
|
+
|
|
| 6. | 136 ? 114 = 250 |
+
|
×
|
-
|
|
| 7. | 15 ? 13 = 195 |
-
|
×
|
+
|
|
| 8. | 14 ? 13 = 182 |
×
|
-
|
+
|
|
| 9. | 174 ? 168 = 6 |
×
|
-
|
+
|
|
| 10. | 116 ? 64 = 52 |
×
|
+
|
-
|
|
| 11. | 100 ? 61 = 39 |
+
|
-
|
×
|
|
| 12. | 142 ? 79 = 63 |
-
|
×
|
+
|
|