1 + 2 =, 4 + 3 =, 7 + 2 =, 8 + 1 =, 5 - 1 =, 9 - 3 =, 7 - 5 =, 8 - 4 =, 2 × 3 =, 4 × 2 =, 5 × 1 =, 2 × 4 =, 6 ÷ 3 =, 8 ÷ 2 =, 9 ÷ 3 =, 4 ÷ 2 =, 10 + 5 =, 20 + 30 =, 12 + 8 =, 15 + 15 =, 20 - 5 =, 50 - 20 =, 100 - 40 =, 16 - 8 =, 10 × 2 =, 5 × 5 =, 3 × 4 =, 6 × 2 =, 20 ÷ 4 =, 30 ÷ 3 =, 15 ÷ 5 =, 40 ÷ 8 =, 2 + 2 × 2 =, (5 + 5) ÷ 2 =, 10 × 2 - 5 =, 20 ÷ (2 + 2) =, 3 × 3 + 1 =, 50 - 10 × 2 =, (10 - 4) ÷ 2 =, 6 × 2 + 8 =

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