| Oefening 1 | |||||
| 1. | 15 ? 5 = 75 |
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×
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| 2. | 10 ? 5 = 50 |
×
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+
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| 3. | 164 ? 94 = 70 |
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+
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×
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| 4. | 189 ? 64 = 253 |
×
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+
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| 5. | 153 ? 121 = 274 |
+
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×
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| 6. | 173 ? 59 = 232 |
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+
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×
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| 7. | 183 ? 139 = 322 |
×
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+
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| 8. | 134 ? 88 = 46 |
×
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+
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| 9. | 12 ? 11 = 132 |
×
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+
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| 10. | 12 ? 12 = 144 |
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+
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×
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| 11. | 129 ? 67 = 62 |
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+
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×
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| 12. | 10 ? 6 = 60 |
-
|
×
|
+
|
|
| Oefening 1 | |||||
| 1. | 15 ? 5 = 75 |
+
|
-
|
×
|
|
| 2. | 10 ? 5 = 50 |
×
|
+
|
-
|
|
| 3. | 164 ? 94 = 70 |
-
|
+
|
×
|
|
| 4. | 189 ? 64 = 253 |
×
|
-
|
+
|
|
| 5. | 153 ? 121 = 274 |
+
|
×
|
-
|
|
| 6. | 173 ? 59 = 232 |
-
|
+
|
×
|
|
| 7. | 183 ? 139 = 322 |
×
|
-
|
+
|
|
| 8. | 134 ? 88 = 46 |
×
|
+
|
-
|
|
| 9. | 12 ? 11 = 132 |
×
|
+
|
-
|
|
| 10. | 12 ? 12 = 144 |
-
|
+
|
×
|
|
| 11. | 129 ? 67 = 62 |
-
|
+
|
×
|
|
| 12. | 10 ? 6 = 60 |
-
|
×
|
+
|
|