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khan academy kids app amazon fire | 1.68 | 0.3 | 8809 | 33 | 19 |
khan academy kids app fire | 0.88 | 0.8 | 1308 | 26 | 62 |
khan academy amazon app | 0.71 | 0.5 | 787 | 23 | 2 |
khan academy kindle fire | 0.45 | 0.9 | 5914 | 24 | 61 |
khan academy kids app amazon | 1.99 | 0.5 | 2706 | 28 | 51 |
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the khan academy app | 1.3 | 0.9 | 8851 | 20 | 88 |
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khan academy app download | 1.56 | 1 | 5141 | 25 | 83 |
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