化学式
英文数学术语
mathematics数学theorem定理calculation计算operation运算arithmetic算术,四则运算addition加法subtraction减法multiplication乘法division除法sum和remainder余product积quotient商2plus1equals3二加一等于三4minus2equals2四减二等于二4multiplied by5,4t...
mathematics数学theorem定理calculation计算operation运算arithmetic算术,四则运算addition加法subtraction减法multiplication乘法division除法sum和remainder余product积quotient商2plus1equals3二加一等于三4minus2equals2四减二等于二4multiplied by5,4t...