Oefening 1 | |||||
1. | 71 ? 52 = 19 |
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2. | 64 ? 58 = 122 |
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3. | 63 ? 48 = 15 |
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4. | 42 ? 20 = 62 |
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5. | 10 ? 2 = 20 |
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6. | 4 ? 2 = 8 |
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7. | 81 ? 77 = 4 |
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8. | 34 ? 23 = 57 |
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9. | 76 ? 59 = 17 |
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10. | 85 ? 68 = 153 |
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11. | 50 ? 27 = 23 |
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12. | 7 ? 6 = 42 |
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Oefening 1 | |||||
1. | 71 ? 52 = 19 |
×
|
+
|
-
|
|
2. | 64 ? 58 = 122 |
+
|
×
|
-
|
|
3. | 63 ? 48 = 15 |
×
|
-
|
+
|
|
4. | 42 ? 20 = 62 |
-
|
×
|
+
|
|
5. | 10 ? 2 = 20 |
×
|
+
|
-
|
|
6. | 4 ? 2 = 8 |
×
|
+
|
-
|
|
7. | 81 ? 77 = 4 |
+
|
-
|
×
|
|
8. | 34 ? 23 = 57 |
+
|
-
|
×
|
|
9. | 76 ? 59 = 17 |
×
|
-
|
+
|
|
10. | 85 ? 68 = 153 |
×
|
-
|
+
|
|
11. | 50 ? 27 = 23 |
-
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+
|
×
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12. | 7 ? 6 = 42 |
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×
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+
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