7th Math Test 1 Flashcards
Round off 4,638,482,196 to the nearest one billion
5,000,000,000
Round off 4,638,482,196 to the nearest ten
4,638,482,200
Round off 4,638,482,196 to the nearest one thousand
4,638,482,000
Round off 4,638,482,196 to the nearest ten million
4,640,000,000
Round off 4,638,482,196 to the nearest hundred million
4,600,000,000
What is the Arabic value of MMDCXLII
2,642
Choose the number that is divisible by 9: 574 or 783
783
write the prime factors of 24
24 = 2 x 2 x 2 x 3
write the prime factors of 16
16 = 2 x 2 x 2 x 2
write the prime factors of 42
42 = 2 x 3 x 7
Find the greatest common factor for 12 & 18
6
Find the greatest common multiple of 5 & 6
30
write the least common multiple of 4 & 6
12
Write the greatest common factor of 4 & 6
2
Which of these numbers are divisible by 4:
300, 128, 442, 1566, 2024, 182
300, 128, 2024
Which of these numbers are divisible by 6:
672, 411, 3022, 1584, 657, 906
672, 1584, 906
True or False: The number 1 is a prime number
False, it is neither prime nor composite
True or False: The number 2 is a composite number
False, it is prime
True or False: The order of the factors can be switched without changing the product.
True
True or False: The sum of any number and 1 is that number
False. The PRODUCT of any number and 1 is that number
True or False: The greatest common factor for 6 & 9 is 3
True
True or False: The least common multiple for 3,4 & 5 is 20.
False.
True or False: MCCCXXXVI = 3326
False
The Ellis Animal Shelter had 52 dogs on Saturday. The shelter had twice as many cats as dogs. How many dogs & cats did the shelter have on Saturday altogether?
156 dogs & cats
The population of Reidville is 478,967. Round off to the nearest ten thousand.
480,000
Colin’s grandparents sent him a check for one thousand dollars. Colin gave $150 to his church, and spent $396 on school clothes, books, and supplies. How much of the money does be have left?
$454
