Unit 1 Review Period 3. Factor Pairs 1.List all the factor pairs for 36. Do not use the number 1 in any of your factor pairs.

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Presentation transcript:

Unit 1 Review Period 3

Factor Pairs 1.List all the factor pairs for 36. Do not use the number 1 in any of your factor pairs.

#1 Answer Answer: 2x1818x2 3x1212x3 4x99x4 6x6

Prime & Composite 2. Explain what a prime number is and give an example. 3. Explain what a composite number is and give an example.

#2 and #3 Answers 2. A prime number has exactly two factors, one and itself. 7 is a prime number. 3. A composite number has more than two factors. 28, 36 and 100 are composite numbers.

Factor Captor 4. What is a good move for you to make in the factor captor game? Why?

#4 Answer A good move is a prime number or a number that does not have many factors. If you choose a prime number you get that amount of points and your partner only gets 1 if it is uncovered. It is always a good first move if you get more points than your opponent.

Prime Factorization 5. What is the prime factorization of 48? Write your answer in expanded and exponential form.

#5 Answer 2x2x2x2x3

Exponential Notation Fill in the missing numbers. 6. = ____ 7. = ____ 8. 9x9= = x10=

#6-10 Answers

Divisibility Rules Make sure to study all of the rules! 11. Create a number that is greater than 100 and divisible by Create a number greater than 100 that is divisible by 6.

#11 & #12 Answers , 105, 132 (Make sure the sum of the digits is divisible by 3) , 108; 114 (The sum of the digits should be divisible by 3 and it should end in an even number)

Square Roots Simplify all of the square roots.

#13-17 Answers

Word Problems 18. Sarah has 24 snickers and 36 Hershey bars. She wants to make goodie bags for her friends. What is the greatest number of goodie bags she can make.

#18 Answer 12, because the greatest common factor of 24 and 36 is 12.

Word Problems 19. There are two trains that leave from the Stamford train station on Monday mornings. The A train leaves every 12 minutes and the B train leaves every 18 minutes. When will they leave the Stamford station at the same time?

#19 Answer 36, the least common multiple of 12 and 18 is 36. They will leave in 36 minutes together.