153°19′42″+26°40′18″=______.
153°19′42″+26°40′18″=______.
计算:153°19′42″+26°40′28″=______.
27.24°=______度______分______秒,108°21′36″=______度.
(1)39.56°=______°______′______″(2)65°25′12″=______°.
计算:48°39′+67°41′=______;90°-78°19′40″=______;21°17′×5=______
90°-46°27′=______,180°-42°35′29″=______.
180°-56°42′32″=______,25°54′÷3=______.
75°40′30″的余角是______,补角是______.
把33.28°化成度、分、秒得______;108°20′42″=______度.
18°______′24°______′32°______′11′______〃19′______〃22′______〃
计算:80°32′15″+90°27′45″=______;100°-36°18′52″=______.
22.5°=______度______分;12°24′=______度.