| Oefening 1 | |||||
| 1. | 9 ? 8 = 72 |
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| 2. | 142 ? 117 = 259 |
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| 3. | 15 ? 11 = 165 |
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| 4. | 164 ? 153 = 11 |
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×
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| 5. | 10 ? 10 = 100 |
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×
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| 6. | 7 ? 5 = 35 |
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×
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| 7. | 114 ? 92 = 206 |
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×
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| 8. | 172 ? 51 = 121 |
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×
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| 9. | 12 ? 11 = 132 |
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| 10. | 105 ? 65 = 170 |
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×
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| 11. | 13 ? 11 = 143 |
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×
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| 12. | 67 ? 61 = 6 |
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+
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×
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|
| Oefening 1 | |||||
| 1. | 9 ? 8 = 72 |
×
|
-
|
+
|
|
| 2. | 142 ? 117 = 259 |
×
|
+
|
-
|
|
| 3. | 15 ? 11 = 165 |
-
|
×
|
+
|
|
| 4. | 164 ? 153 = 11 |
+
|
-
|
×
|
|
| 5. | 10 ? 10 = 100 |
-
|
+
|
×
|
|
| 6. | 7 ? 5 = 35 |
+
|
×
|
-
|
|
| 7. | 114 ? 92 = 206 |
+
|
×
|
-
|
|
| 8. | 172 ? 51 = 121 |
+
|
×
|
-
|
|
| 9. | 12 ? 11 = 132 |
×
|
-
|
+
|
|
| 10. | 105 ? 65 = 170 |
+
|
×
|
-
|
|
| 11. | 13 ? 11 = 143 |
-
|
×
|
+
|
|
| 12. | 67 ? 61 = 6 |
-
|
+
|
×
|
|