53°40′30″×2-75°57′28″÷2=______.
(1)39.56°=______°______′______″(2)65°25′12″=______°.
75°40′30″的余角是______,补角是______.
27.24°=______度______分______秒,108°21′36″=______度.
180°-56°42′32″=______,25°54′÷3=______.
计算:153°19′42″+26°40′28″=______.
计算:48°39′+67°41′=______;90°-78°19′40″=______;21°17′×5=______
90°-46°27′=______,180°-42°35′29″=______.
22.5°=______度______分;12°24′=______度.
23°17′45″的余角是______,补角是______.
22°18′×5=______ 90°-57°23′27″=______ 33°25′除2=_______ 32.48°
把33.28°化成度、分、秒得______;108°20′42″=______度.
153°19′42″+26°40′18″=______.