《2025年通城学典初中数学运算能手七年级上册人教版》

一、填空题
1. $4^{\circ}=$240$' $
2. $4.5^{\prime}=$270$'' $
3. $18^{\prime \prime}=$0.3$' $
4. $900^{\prime}=$15$^{\circ} $
5. $36^{\circ} 36^{\prime} 36^{\prime \prime}=$36.61$^{\circ} $
6. $56.28^{\circ}=$56$^{\circ} $16$' $48$'' $
7. $26^{\circ} 48^{\prime}=$26.8$^{\circ} $
8. $45.6^{\circ}=$45$^{\circ} $36$' $
9. $75^{\circ} 18^{\prime} 36^{\prime \prime}=$75.31$^{\circ} $
10. $5.5^{\circ}=$19800$'' $

答案： 1. 240 2. 270 3. 0.3 4. 15 5. 36.61 6. 56 16 48 7. 26.8 8. 45 36 9. 75.31 10. 19 800

二、计算题
11. $77^{\circ} 53^{\prime} 26^{\prime \prime}+33.3^{\circ} $
12. $89^{\circ} 15^{\prime}-35^{\circ} 21^{\prime} $
13. $23.5^{\circ}+12^{\circ} 30^{\prime} $
14. $12^{\circ} 20^{\prime} 54^{\prime \prime} × 4 $
15. $180^{\circ}-45^{\circ} 32^{\prime} $
16. $360^{\circ} ÷ 7 $(精确到 1 秒)
17. $123^{\circ} 24^{\prime}-60.6^{\circ} $
18. $90^{\circ}-27^{\circ} 43^{\prime} 21^{\prime \prime} $
19. $40^{\circ} 26^{\prime}+30^{\circ} 30^{\prime} ÷ 6 $
20. $22^{\circ} 38^{\prime} 20^{\prime \prime} × 5-28^{\circ} 52^{\prime} 46^{\prime \prime} $

答案： 11. $111^\circ 11'26''$ 12. $53^\circ 54'$ 13. $36^\circ$ 14. $49^\circ 23'36''$ 15. $134^\circ 28'$ 16. $51^\circ 25'43''$ 17. $62^\circ 48'$ 18. $62^\circ 16'39''$ 19. $45^\circ 31'$ 20. $84^\circ 18'54''$