南外冲刺数学15

南京雨花学社 2012年春季 六年级南外冲刺班 数学

第十五讲

姓名__________ 成绩 poduct 乘积 prime number 质数 composite number 合数

perfect square number 完全平方数 whole number 整数 in sequence 连续

1. 53.3÷0.23÷0.91×16.1÷0.82=____.

2. There are three natural numbers. Their sum and their product are the same. The

biggest natural number of them is _____.

3. There are 2 cubic building blocks of the same size. On each face opposite to

each other of the cubic there is a number. The sum of the two numbers is 9. Now we put the two cubes together and we can see the numbers shown as follows. The sum fo those unseen numbers is ________.

南外冲刺数学15

4. 2,4,6,8…,98,100, there are 50 even numbers. What is the sum of each number?

5. There are several hats in a box. All are red except 2. All are blue except2.

All are yellow except 2. There are __________ hats in the box.

6. Is 359999 prime number or composite number ?

7.

A car travels from place A to place

B at the speed of 30 kilometers per hour.

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