4m + 5m =, 4, 8, 9, 12, 5cm + 0cm =, 1, 3, 5, 6, 2cm + 17cm =, 17, 18, 19, 20, 11m + 1m =, 12, 13, 15, 16, 16m + 3m =, 13, 18, 19, 20, 7cm + 0cm =, 1, 4, 7, 9, 3cm + 5cm =, 2, 3, 8, 10, 12m + 1m =, 8, 9, 13, 15, 2cm + 5cm =, 6, 7, 8, 9, 17m + 2m =, 5, 17, 19, 20

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