# Perform operations. 12 min. 54 with + 4 min. 32 with - 11 min. 30 with = 5 h 18 min. - to 2 h are 45 min. + 6 h 27 min.

Mavekus

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12 min. 54 sec. + 4 min. 32 sec. = 17 min. 26 sec. 17 min. 26 sec. - 11 min. 30 sec. = 6 min. 36 sec. 5 h 18 min. - to 2 h are 25 min. = 3 h 33 min. 3 h 33 min. + 6 h 27 min. = 9 h 00 min. Likely everything is right (

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vyacheslav

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