A student expressed a sum of two whole numbers as 5(3+2). What were the two whole numbers?
15 and 10
Val says that the prime factorization of 90 is 2 x 5 x 9. Is she right? Explain.
No, she is not right. She used a composite number (9) in her expression. She should have written 2 x 3 x 3 x 5
The answer to a division problem is called the:
Quotient
What is the LCM of 8 and 12?
24
If you are finding the LCM of 10 and another number. What do you know about the common multiple they will have.
The common multiple will end in 0.
How are multiples and factors different?
Multiples go on forever, they are the products. Factors are limited. They are the numbers that can be multiplied to create a number
Find the product of 4802 and 127.
609,854
Rewrite the sum of the numbers as the product of their GCF and another sum. 18 + 42
6(3+7)
What are the factors of 24?
1,2,3,4,6, 8,12,24
What is the prime factorization of 24
2 x 2 x 2 x 3
What helpful tool can we use to organize the factors a number has?
a T- chart
List the first 5 multiples of 8
8, 16, 24, 32, 40
Lily brings grapes for lunch ever 6 days, and Lane brings grapes every 8 days. If they both brought grapes to lunch today, how many days will it be before they both bring grapes again?
24
Find the missing number : 31 x _____ = 16,399
16,399
What is the GCF of 14 and 35?
7
How do you find the GCF of 2 numbers?
You list the factors. Look for all of the common factors. Pick the greatest of the common factors
Rewrite the sum of the numbers as the product of their GCF and another sum. 75 + 30
15(5+2)
What is the prime factorization of 51?
3 X 17
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