计算:52°22′×9 178°53′÷5 的具体解法

问题描述:

计算:52°22′×9 178°53′÷5 的具体解法

52°22′×9 =52°×9+22′×9 =468°+198'=468°+180'+18'=468°+3°+18'=471°18'178°53′÷5=(178°+53′)÷5=(175°+3°+53′)÷5=(175°+180'+53′)÷5=(175°+233′)÷5=(175°+230'+3′)÷5=(175°+230'+180...