| Factors | Multiples | Prime and Composite | Math Words | Mystery Math (?) |
|---|---|---|---|---|
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What are all of the factors of 10?
1, 2, 5, 10
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What are the first three multiples of 10?
10, 20, 30
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True or False: 10 is a prime number.
False: 10 is composite because it has more than two factors, or more than one factor pair. You can get to ten by multiplying 1X10 or 2X5.
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What is a prime number?
A number that only has one and itself as factors.
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What is the rule for multiplying a number times ten?
You add a zero to the number you started with.
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What are all of the factors of the number 30?
1, 2, 3, 5, 6, 10, 15, 30
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What are the first five multiples of 6?
6, 12, 18, 24, 30
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True or False: 2 is a prime number.
True. The only way to get to 2 is to multiply 1X2.
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What is a composite number?
A number that has two or more factor pairs, or at least three factors.
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What is the rule when multiplying by 11?
The answer is the original number in the ones and tens place.
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What are all of the factors of the number 54?
1, 2, 3, 6, 9, 18, 27, 54
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What are the first six multiples of 7?
7, 14, 21, 28, 35, 42
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True or False: 29 is a prime number.
True. The only way to make 29 by multiplying is 1X29.
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Read the following story problem. Should you add, subtract, multiply, or divide in this problem?
Tommy and Richard go on a road trip selling car parts to different businesses. If they sell 1,000 car parts for five days in a row, how many car parts did they sell?
In this problem you would need to multiply, because you have 1,000 car parts sold on each of five days, so you would do 1,000 X 5 for an answer of 5,000 total car parts.
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What is the answer to a subtraction problem called?
A difference.
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What are all of the factors of the number 80?
1, 2, 4, 5, 8, 10, 16, 20, 40, 80
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What are the first 10 multiples of 9?
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
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True or False: All even numbers are composite. Explain how you know.
True. All even numbers (besides 2) are composite because they all have 1 and itself as a factor as well as two and another number.
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What kind of math would you need to do to solve this problem? Michelle goes to the carnival with $20 and plays six games. If each game cost $3, how much money does she have left after playing games?
This is a multi-step problem. First, you would need to multiply six times three (18) to find out how much money she spent on games. Then, you would need to subtract 20-18 to find out that she has $2 left.
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On Halloween the monsters returned. The witch family of five came back to town, accompanied by Frankenstein, the bride of Frankenstein, and their three children. A few hours later arrived Mr. and Mrs. Ghost with their six little ghosts, and right behind them came four zombies, three werewolves, two vampires, and for some reason a partridge in a pear tree.
How many pears were on the tree? Just kidding, that doesn't make sense. How many monsters came to town?
27
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What are all of the factors of the number 96?
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
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What are two ways you can find the multiples of a given number?
Acceptable answers: You can skip count by that number, you can multiply, or you can use repeated addition.
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True or False: 71 is a prime number.
True. The only way to make 71 is 1X71.
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What is the difference between a product and a sum?
A product is an answer to a multiplication problem, while a sum is an answer to an addition problem.
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When there's somethin' strange in the neighborhood, who ya gonna call?
Ghostbusters
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