22Â Â Â Â Â Â Â Â Â Â 62Â Â Â Â Â Â Â Â Â Â 178Â Â Â Â Â Â Â Â 522Â Â Â Â Â Â Â Â 1550Â Â Â Â Â Â ?
22 × 3 – 4 = 66 – 4 = 62 62 × 3 – 8 = 186 – 8 = 178 178 × 3 – 12 = 534 – 12 = 522 522 × 3 – 16 = 1566 – 16 = 1550 1550 × 3 – 20 = 4560 – 20 = 4630
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