Number Sense

1). (2 points) 3, 6, 9 and 12 are some multiples of 3. How many multiples of 3 are there between 10 and 226?




Answer: ______

TEAM NO ____ TEAM MEMBERS:

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2). (2 points) The sum of the first 25 natural numbers is 325. What is the sum of the next 25 natural numbers: 26 + 27 + 28 + ... + 49 + 50 =


Answer:________

3). (2 points) 30! represents the product of all natural numbers from 1 through 30 like this: 30 x 29 x 28 x 27 x ... 5 x 4 x 3 x 2 x 1 If the product is factored into primes, how many 5's will there be in the list of prime factors?


Answer:________

4). (2 points) n3 = 4913 What is the value of n?


Answer:________

5). (2 points) Express the following as a simple fraction in lowest terms:



Answer:________