Divisibility
Is 3,562 divisible by 3? Explain.
No, the sum of the digits (16) is not a multiple of 3.
Simplify: 52
25
Find the prime factorization of 28.
2^2 x 7
What is x4(x3) ?
x7
What kind of exponents are used when representing large numbers in scientific notation?
positive
Which number is divisible by 2: 2,371 or 3,712? Explain.
3,712--it is an even number.
Simplify. 3(5)2
75
15xy
What do you do with the exponents when multiplying powers that have the same base?
add them
What is 860 written in scientific notation?
8.6 x 102
Which number is divisible by both 3 and 9? 50,223 or 61,371
61,371--the sum of the digits (18) is a multiple of both 3 and 9.
Simplify. Write your answer using a positive exponent. x3/x5
1/x^2
Find the GCF of 24 and 60.
12
What is 5x3y2(3x5y)
15x8y3
What is 5.3 x 10-4 written in scientific notation?
0.00053
Which number: 723 or 68 is divisible by 6? Explain.
723 (it is divisible by both 2 and 3)
12x3/14x
6/7(x2)
Could 2 x 2 x 3 x 8 be a number's prime factorization? Explain.
No, because 8 is not a prime number.
(x5)^2
x10
What exponent should be used to write 4,570,000,000 in scientific notation?
9
4x5/12x2
1/3(x^3)
What is 0.9 x 10-8 written in scientific notation?
9 x 10-9