小编为各位考生整理了GMAT数学打好基础非常重要的内容,供考生们参考使用,更多GMAT辅导请继续关注教育GMAT。
一.整数:integer,whole number
1.因子:factor or divisor
If x and y are integers and x0,x is a divisor of y provided that y=xn for some integer n. In this case y is also said to be divisible by x or to be a multiple of x. For example, 7 is a divisor or factor of 28 since 28=7 4, but 8 is not a divisor of 28 since there is no integer n such that 28=8n.Divisible adj.可以被整除的 multiple n.倍数
2.商和余数:quotients and remainders
余数和商都可以为0
3.奇数和偶数:odd and even integers
奇数和偶数都可以是负数;零一定是偶数
4.质数和合数:prime numbers and composite numbers
A prime number is a positive integer that has exactly two different positive divisors,1 and itself. For example, 2,3,5,7,11, and 13 are prime numbers, but 15 is not, since 15 has four different positive divisors, 1, 3, 5, and 15. The number 1 is not a prime number, since it has only one positive divisor. Every integer greater than 1 is either prime or can be uniquely expressed as a product of prime factors. For example, 14= , 81= , and 484= .
注:GMAT考试除了1和其本身外,还有其他因子的数叫合数。GMAT数学最小的质数为2,最小的合数为4,在讨论质数和合数时,都指正数。1和0既不是质数,也不是合数。
5.整数中的重要概念:
Perfect square完全平方数,诸如9 = 32
Perfect cube 完全立方数,诸如8 = 23
the greatest common divisor 最大公约数
GMAT入门几个数所公有的最大因子称最大公约数,诸如:48与36的公因子有1,2,3,4,6,12,其中12为最大公约数。
the least common multiple最小公倍数
几个数所公有的最小倍数称最小公倍数,诸如:3,7和14的最小公倍数为42。
连续正整数的算术平均值也是首项和末项的算术平均值。
同理,连续奇数与连续偶数的算术平均值也是首项和末项的算术平均值。
以上是关于GMAT数学打好基础非常重要的详细内容,希望对大家备考GMAT数学考试提供合理建议,小编祝愿大家取得好成绩。
体坛英语资讯:England beat Colombia 4-3 on penalties to reach World Cup quarterfinals
体坛英语资讯:Against England, Belgium remain unbeaten to play Japan in last 16
体坛英语资讯:China lose to Brazil 3-0 in VNL finals
体坛英语资讯:Nigerian captain Mikels father kidnapped hours before vital World Cup match
国际英语资讯:U.S. ambassador eyes NATO summit fruits to counter Russia
国际英语资讯:UN chief reiterates suspension of hostilities in SW Syria
国际英语资讯:UN Refugee Agency launches drive to ID about 900,000 Rohingya
国际英语资讯:Italys hardline refugee policies increasingly popular, but also drawing criticism
体坛英语资讯:Neymar: I will stay in Paris
国际英语资讯:19 killed in blasts at small fireworks factory in central Mexico
体坛英语资讯:Axelsen, Okuhara keep World Championships title defences on track
国际英语资讯:Brazilian judge blocks ruling to release Lula
国际英语资讯:Spotlight: Deteriorating situation in SW Syria arouses deep concern at UN
体坛英语资讯:Brazil deserve to be among World Cup favorites, says Serbia coach
国际英语资讯:Palestinian young man killed in clashes with Israeli soldiers in eastern Gaza
体坛英语资讯:Colombian Gomez named Ecuador coach
体坛英语资讯:Shandong Luneng climb to top of CSL table after 2-1 win at Changchun Yatai
Will E-books Replace Traditional Books? 传统书籍是否会被电子书替代?
国内英语资讯:Chinese premier arrives in Bulgaria for official visit, China-CEEC meeting
国内英语资讯:Xis special envoy attends Colombian presidential inauguration
体坛英语资讯:Greece keeper Kapino joins Werder Bremen
体坛英语资讯:Spanish media play blame game for World Cup exit
体坛英语资讯:Russia sweeps all titles at junior artistic swimming worlds
体坛英语资讯:Axelsen working hard ahead of challenge from Momota in World Championship
体坛英语资讯:Chepkoech smashes womens steeplechase world record in Monaco
体坛英语资讯:Russia wins women team technical title at junior artistic swimming worlds
体坛英语资讯:Lewis Hamilton claims victory in Hungarian Grand Prix
国内英语资讯:Xis special envoy to attend opening ceremony of Asian Games
体坛英语资讯:Brazil batter the Netherlands 3-0 in VNL finals
国内英语资讯:Chinese, U.S. officials agree to boost cooperation
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |