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الجمع والطرح
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800 - 100 = a) 600 b) 700 c) 500
700
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12 - 9 = a) 3 b) 2 c) 1
3
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110 + 110 = a) 330 b) 440 c) 220
220
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27 + 13 = a) 50 b) 30 c) 40
40
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