Calculation) 65°53′26〃+37°14′44〃 90°-47°26′15〃 21°32′20〃×4 100°12′15〃÷5 If you can, I'll give you another 20!
According to 1 ° = 60 ′ 1 ′ = 60 ″ 65 ° 53 ′ 26 ″ + 37 ° 14 ′ 44 ″ = 102 ° 67 ′ 70 ″ = 103 ° 8 ′ 10 ″ 90 ° - 47 ° 26 ′ 15 ″ = 89 ° 59 ′ 60 ″ - 47 ° 26 ′ 15 ″ = 42 ° 33 ′ 45 ″ 21 ° 32 ′ 20 ″ × 4 = 84 ° 128 ′ 80 ″ = 86 ° 9 ′ 20 ″ 100 ° 12 ′ 15 ″ 5 = 20 ° 2.4 ′ 3 ″
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