78.36°=______°______′______″.
27.24°=______度______分______秒,108°21′36″=______度.
3.76°=______度 ______分 ______秒.
22.5°=______度______分;12°24′=______度.
(1)39.56°=______°______′______″(2)65°25′12″=______°.
125×(4+8)=______×______+______×______.
填质数:21=______+______=______×______=______-______.
45°=______直角=______平角=______周角.
用度、分、秒表示26.34°=______度______分______秒.
计算:57.32°=______度______分______秒.
52°45′-32°46′=______°______′.
75°40′30″的余角是______,补角是______.
23°17′45″的余角是______,补角是______.