78°36〃-57°19′40〃=______
18°______′24°______′32°______′11′______〃19′______〃22′______〃
计算:48°39′+67°41′=______;90°-78°19′40″=______;21°17′×5=______
27.24°=______度______分______秒,108°21′36″=______度.
56°25′12〃=______度
22°18′×5=______ 90°-57°23′27″=______ 33°25′除2=_______ 32.48°
75°40′30″的余角是______,补角是______.
(1/10)°=_____′,18′=______〃.20′=_____°,25〃=______° 把21°30′用度表
22.5°=______度______分;12°24′=______度.
24.31°=_____°_______′______〃?怎么算
计算:78°46′14″-36°50′=______.
153°19′42″+26°40′18″=______.
计算:153°19′42″+26°40′28″=______.