| Oefening 1 | |||||
| 1. | 169 ? 70 = 99 |
×
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| 2. | 5 ? 5 = 25 |
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×
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| 3. | 200 ? 179 = 379 |
×
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+
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| 4. | 132 ? 130 = 2 |
+
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×
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| 5. | 151 ? 70 = 221 |
×
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+
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| 6. | 15 ? 7 = 105 |
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+
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×
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| 7. | 179 ? 99 = 80 |
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+
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| 8. | 15 ? 6 = 90 |
+
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×
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| 9. | 198 ? 62 = 260 |
×
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+
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| 10. | 108 ? 101 = 209 |
×
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+
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| 11. | 182 ? 51 = 131 |
+
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×
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| 12. | 175 ? 163 = 338 |
×
|
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|
+
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|
| Oefening 1 | |||||
| 1. | 169 ? 70 = 99 |
×
|
-
|
+
|
|
| 2. | 5 ? 5 = 25 |
-
|
+
|
×
|
|
| 3. | 200 ? 179 = 379 |
×
|
+
|
-
|
|
| 4. | 132 ? 130 = 2 |
+
|
×
|
-
|
|
| 5. | 151 ? 70 = 221 |
×
|
+
|
-
|
|
| 6. | 15 ? 7 = 105 |
-
|
+
|
×
|
|
| 7. | 179 ? 99 = 80 |
×
|
-
|
+
|
|
| 8. | 15 ? 6 = 90 |
+
|
-
|
×
|
|
| 9. | 198 ? 62 = 260 |
×
|
-
|
+
|
|
| 10. | 108 ? 101 = 209 |
×
|
+
|
-
|
|
| 11. | 182 ? 51 = 131 |
+
|
×
|
-
|
|
| 12. | 175 ? 163 = 338 |
×
|
-
|
+
|
|