单词	rounding
释义	Rounding Rounding means making a number simpler but keeping its value close to what it was. The result is less accurate, but easier to use. Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80. But 76 goes up to 80. There are many ways to round. This is the most common method: • Decide which is the last digit to keep • Leave it the same if the next digit is less than 5 (this is called rounding down) • Increase it by 1 if the next digit is 5 or more (this is called rounding up)
随便看	quadrilateral quadrillion qualitative data quantitative data quantity quantum quart quarter quarterly quartiles quaternary quinary quintillion quotient radian radical radicand radius radius (polygon) radix random random sample range (statistics) range of a function rate

数学辞典收录了1200条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。