90°-46°27′=______,180°-42°35′29″=______.
90°-46°27′=______,180°-42°35′29″=______.
27.24°=______度______分______秒,108°21′36″=______度.
22.5°=______度______分;12°24′=______度.
3.76°=______度 ______分 ______秒.
(1)39.56°=______°______′______″(2)65°25′12″=______°.
180°-56°42′32″=______,25°54′÷3=______.
52°45′-32°46′=______°______′.
把33.28°化成度、分、秒得______;108°20′42″=______度.
计算:48°39′+67°41′=______;90°-78°19′40″=______;21°17′×5=______
计算:80°32′15″+90°27′45″=______;100°-36°18′52″=______.
计算:33°52′+21°54′=______度______分.
45°=______直角=______平角=______周角.