20 + 30 = ?, 40, 70, 60, 50, 50 + 20 = ?, 50, 70, 60, 80, 10 + 40 = ?, 50, 70, 30, 60, 30 + 30 = ?, 70, 50, 60, 80, 40 + 20 = ?, 70, 60, 80, 50, 60 + 10 = ?, 70, 90, 80, 60, 20 + 20 = ?, 60, 50, 30, 40, 70 + 20 = ?, 100, 70, 90, 80, 30 + 50 = ?, 70, 60, 90, 80, 40 + 50 = ?, 90, 70, 100, 80, 10 + 10 = ?, 30, 40, 10, 20, 10 + 20 = ?, 30, 20, 50, 40, 10 + 30 = ?, 30, 60, 40, 50, 10 + 50 = ?, 80, 60, 50, 70, 10 + 60 = ?, 60, 70, 90, 80, 10 + 70 = ?, 80, 90, 70, 100, 10 + 80 = ?, 80, 100, 90, 70, 10 + 90 = ?, 70, 80, 90, 100, 20 + 10 = ?, 20, 30, 40, 50, 20 + 40 = ?, 60, 80, 70, 50, 20 + 50 = ?, 80, 60, 90, 70, 20 + 60 = ?, 100, 70, 80, 90, 20 + 70 = ?, 80, 70, 100, 90, 20 + 80 = ?, 90, 70, 100, 80, 30 + 10 = ?, 40, 30, 50, 60, 30 + 20 = ?, 70, 50, 60, 40, 30 + 40 = ?, 80, 60, 70, 90, 30 + 60 = ?, 100, 80, 70, 90, 30 + 70 = ?, 90, 100, 80, 70, 40 + 10 = ?, 50, 70, 60, 40, 40 + 30 = ?, 90, 60, 70, 80, 40 + 40 = ?, 70, 90, 100, 80, 40 + 60 = ?, 100, 90, 70, 80, 50 + 10 = ?, 70, 60, 50, 80, 50 + 30 = ?, 100, 80, 70, 90, 50 + 40 = ?, 80, 70, 100, 90, 50 + 50 = ?, 70, 80, 100, 90, 60 + 20 = ?, 80, 90, 100, 70, 60 + 30 = ?, 100, 90, 70, 80, 70 + 10 = ?, 100, 90, 80, 70
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