1、153°39'+25°40'38" 2、90°-37°24‘38” 3、25°53’8“×5

1、153°39'+25°40'38"
=178°79'38"
= 179°19'38"
2、90°-37°24'38"
=53°-24'38"
=52°36'-38"
=52°35'22"
3、25°53'8"×5
=25°×5+53'×5+8"×5
=125°+265'+40"
= 129°15'40"