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
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15
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.
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15
A student expressed a sum of two whole numbers as 5(3+2). What were the two whole numbers?
15 and 10
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20
Find the product of 4802 and 127.
609,854
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20
What is the quotient of 8,928 and 24
372
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thief
Give points!
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star
Double points!
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rocket
Go to first place!
Okay!
thief
Give points!
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15
Rewrite the sum of the numbers as the product of their GCF and another sum. 18 + 42
6(3+7)
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15
List the first 5 multiples of 8
8, 16, 24, 32, 40
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thief
Give points!
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fairy
Take points!
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gift
Win 20 points!
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baam
Lose 5 points!
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25
Rewrite the sum of the numbers as the product of their GCF and another sum. 75 + 30
15(5+2)
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20
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?