2024年5月5日发(作者:)

小升初英文奥数题 一

1、In 2023, 16 June falls on a Wednesday. On what day of the week will 16 June fall in2023?

2、If half of a number is 30, then three-quarters of that number is____.

3、The sum of the digits of the following product 999×555

4、Three positive integers have a sum of 28. The greatest possible product that these integers can have

is_____.

5、In what follows, □ and Δ are different numbers. When 503 is divided by □ the remainder is

503 is divided by Δ the remainder is 493 is divided by □ x Δ the remainder is_____.

6、A lady, her brother, her son and her daughter (all related by birth) played volleyball. The worst

player's twin (who is one of the four players) and the best player are of opposite sex. The worst player

and the best player are of the same age. Who cannot be the worst player(s)?

A) brother only B) daughter only C) son and daughter only D) lady and daughter only

E) lady only

7、If you continue the given number pattern, in what row and in what position in that row will the

number 320 be?

1 -------------- row 1 2 3 -------------- row 2 4 5 6 -------------- row 3 7 8 9 10

-------------- row 4

The answers are given in the order of row ; position.

翻译:

4. 三个正整数之和为28,他们积的最大值是(810) 9*9*10=810

5. □和△代表不同数字,503/□的余数是20,503/△的余数是20,那么493/(□×△)的余数是(10或493)

这个题出得有点问题, 503-20=483=3*7*23,假如□×△>493,例如21*69,则余数为493 ,不然为10

6.一位女士,她兄弟,她的儿子和女儿(都是亲的)打排球.最差球手的孪生同胞和最佳球手异性,最差球手和最佳球手同龄,谁不也许是最差球手

(之一)?

A.只有兄弟 B.只有女儿 C.只有儿子和女儿 D.只有女士和女儿 E.只有女士

也就是说最差球手和最佳球手同性且同龄,最差球手是双胞胎之一 ,这样只有一种也许:儿子是最差,女士的弟弟与儿子同龄是最佳

备选答案中似乎没合适的

6.如过继续下面的数字列表,320在第几行,以及该行的什么位置(也就是第几列)

1.....................第1行 第2行 4,第3行 7,8,第4行

按照"行,列"的形式给出答案:(25,20)

参考答案:

1、 Wednesday

详解:In 2023, 16 June falls on a Wednesday. On what day of the week will 16 June fall in 2023? 翻2023

年6月16号是星期三,那么2023年6月16号是星期几呢?2023年6月16号是星期三,那么2023年6月16号

是星期几呢?

还是星期三

平年 365÷7=52……1

闰年 366÷7=52……2

所以若次年为平年,则那年的今天星期序号是现年今天后一天;闰年则后两天。

2023,2023,2023,2023,2023为平年,2023为闰年

于是加起来应当多7天,即一个星期,所以还是星期三

2、45 3、27(求数位上上的数字之和) 4、28=9+9+10,因此答案为810

5、503-20=483 483=3×7×23=21×23,因此□ x Δ=483,因此此题余数是10. 6、D 7、25,20

小升初英文奥数题[2]

1、Did you know? In the decimal number system (base 10) ten different digits, 0 to 9, are used to write

all the numbers. In the binary number system (base 2) two different digits are used, i.e. 0 and 1.

Which one of the following numbers is not a valid number in the octal number system (base 8)?

A) 128 B) 127 C) 126 D) 125 E) 124