21 - 3 × 7 =, 7 - 1 × 7 =, 14 - 2 × 7 =, 28 - 4 × 7 =, 35 - 5 × 7 =, 42 - 6 × 7 =, 49 - 7 × 7 =, 56 - 8 × 7 =, 63 - 9 × 7 =, 70 - 10 × 7 =, 6 - 1 × 6 =, 12 - 2 × 6 =, 18 - 3 × 6 =, 30 - 5 × 6 =, 36 - 6 × 6 =, 48 - 8 × 6 =, 54 - 9 × 6 =, 60 - 10 × 6 =, 8 - 1 × 8 =, 16 - 2 × 8 =, 24 - 3 × 8 =, 32 - 4 × 8 =, 40 - 5 × 8 =, 64 - 8 × 8 =, 72 - 9 × 8 =, 80 - 10 × 8 =,

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