5 x 4, 9, 20, 1, IV mean, 5, 4, 3, 67 + 4, 70, 71, 72, 64 - 29, 36, 35, 37, (5x6) +5, 35, 36, 37, 6 x ( 7+8 -9 ), 35, 36, 34, 56 : 7, 8, 9, 7, 72 : 9 + ( 5 + 6 ), 17, 16, 15, 45 : 9, 5, 6, 4, 68 spelling, sixty eight, sixteen eighty, sixty eighty, round to the nearest 10 “183”, 180, 190, 170

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