គណិតវិទ្យាថ្នាក់ទី១ ៥ ថ្ងៃ:.........ខែ:..........ឆ្នាំ:...........
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11 + 14
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14 + 14
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22 + 25
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44 + 15
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71 + 25
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56 + 31
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72 - 51
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31 + 7
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45 + 21
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63 + 33
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74 + 23
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15 + 23
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7 + 11
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22 + 55
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66 + 12
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83 + 13
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13 + 62
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53 + 33
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50 + 35
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