我们知道,角度采用60进制,且角度的运算和我们前面学过的数的运算类似.那么,在进行角度的换算与计算时,我们应当注意哪些问题呢?人教版数学教科书七年级上册第132页有一道练习题,是让我们计算176°52′÷3(精确到分),其实质是角度的运算.用度、分、秒表示的角中,度、分、秒之间是相加的关系,比如176°52′=176°+52′,这一点与带分数有相似之 We know that the angle of 60 hexadecimal, and the angle of the operation and we have learned before the number of similar operations.So, then, in the conversion and calculation of angle, we should pay attention to what problems? PEP mathematics textbook grade seven There is an exercise on page 132 that allows us to calculate 176 ° 52 ’÷ 3 (exact to minute), the essence of which is the angle operation. The angle, degrees, minutes and seconds in degrees, minutes and seconds are Add the relationship, such as 176 ° 52 ’= 176 ° +52’, which is similar with the fractional