Observation rule 1, - 4,9, - 16,25, - 36,49

Observation rule 1, - 4,9, - 16,25, - 36,49

-64

18 degrees into degrees, minutes and seconds,

It's all 60 degrees
0.18°=60*0.18′=10.8′；
0.8′=60*0.8″=48″；
18.18°=18°10′48″.

59 ° 17 ′ - 18 ° 28 ′ 23 ° 15 ′ 40 ″ × 333.28 ° 33 ° 52 ′ + 21 ° 51 ′ =?
59°17′-18°28′
23°15′40″×3
33.28 degree
33°52′+21°51′=?

59 ° 17 ′ - 18 ° 28 ′ = (58 ° - 18 °) + (60 ′ + 17 ′ - 28 ′) = 40 ° 49 ′ 23 ° 15 ′ 40 ″ × 3 = 69 ° 45 ′ 120 ′ = 69 ° 47 ′ 33.28 ° (speech rate, minute and second) = 33 ° + (0.28 * 60) ′ = 33 ° + 16.8 ′ = 33 ° 16 ′ + (0.8 * 60) ″ = 33 ° 16'48 ″ 33 ° 52 ′ + 21 ° 51 ′

How to convert degrees into degrees in calculation

Small units divided by 60
Large units to small units multiplied by 60
The problem of converting degree, minute and second into degree is to transform second into component and then into degree
For example, 34 ° 24'36 "= 34 ° 24.6 '= 34.401"
（36"=0.6' 24.6'=0.401°）