| Oefening 1 | |||||
| 1. | 15 ? 14 = 210 |
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| 2. | 624 ? 366 = 990 |
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| 3. | 204 ? 188 = 16 |
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| 4. | 977 ? 433 = 544 |
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| 5. | 13 ? 12 = 156 |
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| 6. | 20 ? 19 = 380 |
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| 7. | 20 ? 15 = 300 |
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| 8. | 11 ? 11 = 121 |
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| 9. | 16 ? 12 = 192 |
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| 10. | 718 ? 206 = 924 |
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| 11. | 18 ? 15 = 270 |
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×
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| 12. | 20 ? 13 = 260 |
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×
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+
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| Oefening 1 | |||||
| 1. | 15 ? 14 = 210 |
×
|
+
|
-
|
|
| 2. | 624 ? 366 = 990 |
+
|
-
|
×
|
|
| 3. | 204 ? 188 = 16 |
-
|
×
|
+
|
|
| 4. | 977 ? 433 = 544 |
-
|
×
|
+
|
|
| 5. | 13 ? 12 = 156 |
+
|
-
|
×
|
|
| 6. | 20 ? 19 = 380 |
-
|
×
|
+
|
|
| 7. | 20 ? 15 = 300 |
×
|
+
|
-
|
|
| 8. | 11 ? 11 = 121 |
-
|
+
|
×
|
|
| 9. | 16 ? 12 = 192 |
+
|
-
|
×
|
|
| 10. | 718 ? 206 = 924 |
+
|
-
|
×
|
|
| 11. | 18 ? 15 = 270 |
+
|
-
|
×
|
|
| 12. | 20 ? 13 = 260 |
-
|
×
|
+
|
|