计算题:175º16′30″-47º30′÷6+4º12′50″×3
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![计算题:175º16′30″-47º30′÷6+4º12′50″×3](/uploads/image/z/7653318-6-8.jpg?t=%E8%AE%A1%E7%AE%97%E9%A2%98%EF%BC%9A175%26%23186%3B16%E2%80%B230%E2%80%B3-47%26%23186%3B30%E2%80%B2%C3%B76%2B4%26%23186%3B12%E2%80%B250%E2%80%B3%C3%973)
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计算题:175º16′30″-47º30′÷6+4º12′50″×3
计算题:175º16′30″-47º30′÷6+4º12′50″×3
计算题:175º16′30″-47º30′÷6+4º12′50″×3
先算乘除后算加减,这是角度,175°16.30
16是分,30是秒,到60向前加一位,和时钟上分针一样
175º16′30″-47º30′÷6+4º12′50″×3
=175º16′30″-7º55′+12º38′30″
=180º