Which of the numbers below is/are NOT prime?
37, 57, 87, 107
57 and 87
Which of the numbers below is 2040 divisible by?
2, 3, 5, 9, or 10
all of them
Write 30,000 in Scientific Notation
3 x 104
Simplify (87)(85)
812
Evaluate 10000
1
Factor 25m3 completely
(5)(5)(m)(m)(m)
How can you tell if a large number is divisible by 3 without using a calculator or long division?
Add the digits and see if the sum is a multiple of 3
Write 2.45 X 106 in standard form
2,450,000
Simplify x9/x4
x5
Evaluate x-2 if x = 3
1/9
Find the GCF of 6 and 15
3
Write 2.5 X 10-5 in standard form
0.000025
Simplify (4r5)(2r)
8r6
Write 3y-2 using positive exponents.
3/y2
Prime Factorization 120
(2)(2)(2)(3)(5)
Find the Greatest Common Factor of 20x2 and 36x
4x
Write 0.0003 in scientific notation
3.0 x 10-4
Simplify 24m11/18m3
4m8/3
Simplify a-3/a4
1/a7
Find the GCF of 7xy3 and 28xy2
7xy2
Find the product (3.2 x 109)(4.45 x 105)
1.424 x 1015
Simplify (2x2y3z)4
16x8y12z4
Simplify and write with positive exponents
a0/a-5
a5