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The carpenter bought a 16 foot board. He cut off three pieces: 3 feet 4 inches, 2 feet 10 inches, and 6 feet 8 inches. How much board does he have left?

  • math -

    3'4" + 2"10" + 6'8" = 11'22" = 12'10"

    16" = 15'12", so the amount left is

    15'12" - 12'10" = 3'2"

  • math -

    1 ft = 12 in

    2 ft = 24 in

    6 ft = 72 in

    16 ft = 192 in



    3 ft + 4 in + 2 ft + 10 in + 6 ft 8 in =

    36 + 4 + 24 + 10 + 72 + 8 = 154 in


    16 ft - 154 in = 192 in - 154 in =

    38 in =

    36 in + 2 in =

    3 ft 2 in

  • math -

    if 3 1/2 inches are cut off one end of an 8-foot length of lumber, what length remains

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