| Oefening 1 | |||||
| 1. | 172 ? 159 = 331 |
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×
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| 2. | 108 ? 68 = 40 |
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×
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| 3. | 81 ? 62 = 143 |
×
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+
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| 4. | 7 ? 6 = 42 |
+
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×
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| 5. | 13 ? 5 = 65 |
×
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+
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| 6. | 140 ? 84 = 224 |
×
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+
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| 7. | 161 ? 103 = 264 |
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+
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×
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| 8. | 149 ? 147 = 296 |
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×
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+
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| 9. | 10 ? 5 = 50 |
×
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+
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| 10. | 14 ? 8 = 112 |
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×
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+
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| 11. | 124 ? 118 = 6 |
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+
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×
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| 12. | 15 ? 6 = 90 |
×
|
+
|
-
|
|
| Oefening 1 | |||||
| 1. | 172 ? 159 = 331 |
-
|
×
|
+
|
|
| 2. | 108 ? 68 = 40 |
+
|
-
|
×
|
|
| 3. | 81 ? 62 = 143 |
×
|
-
|
+
|
|
| 4. | 7 ? 6 = 42 |
+
|
-
|
×
|
|
| 5. | 13 ? 5 = 65 |
×
|
+
|
-
|
|
| 6. | 140 ? 84 = 224 |
×
|
-
|
+
|
|
| 7. | 161 ? 103 = 264 |
-
|
+
|
×
|
|
| 8. | 149 ? 147 = 296 |
-
|
×
|
+
|
|
| 9. | 10 ? 5 = 50 |
×
|
+
|
-
|
|
| 10. | 14 ? 8 = 112 |
-
|
×
|
+
|
|
| 11. | 124 ? 118 = 6 |
-
|
+
|
×
|
|
| 12. | 15 ? 6 = 90 |
×
|
+
|
-
|
|