Download Pre-Algebra Chapter 4 Practice Test Use the divis

4
Name: ____Answer Key ______________________________Date: _____________
Pre-Algebra
Chapter 4 Practice Test
Use the divisibility rules to determine whether each number is divisible by 2,3,5,6,and 10.
1) 98
1)
2
3
5
6
10
2) 360
2)
2
3
5
6
10
Determine whether each expression is a monomial.
3) 9k(p-3)
3) ___NO____
4) 6a(4c)
4) ___YES______
5) Write(-3)(-3)(-3)(-3)(-3)(-3) using exponents
5)
__(-3)6______
6) Evaluate 5y4 if y = 3
6)
___405____________
Write the prime factorization of each number or monomial.
7) 68
8) 32p2x
7) ____22·17__________
8) ___25·p2· x_________
Find the GCF of each set of number or monomials.
9) 20, 30, 45
10) 16x2, 18x
11) Factor 20a + 4
9) ____5________
10) ___2x_____________
11) ___4(5a +1)_______
Write each fraction in simplest form.
12)
12) ___ __________
13)
13) ____ _________
14) Forty-five seconds is what part of a minute?
14) ___ ____________
15)
16)
17)
d3· d2
(12x2y)(3y)
(-3)5
(-3)2
15) ____d5____________
16) ____36x2y2________
17) ____(-3)3__________
18)
a16
a
Find each product or quotient. Express using exponents.
Write each expression using a negative exponent other than -1.
18) ___a15___________
19)
1
47
20) 0.001
21) Evaluate a-4 if a =2
19) _____4-7________
22) Express 4.68 x 10-4 in standard form
23) The number of differnet hands possible in the gam eo f bridge is
about 635 billion. Write this number in scientific notation.
24) The number of neurons in the neocortex of the human brain is
3.0x 1010. The neocortex of a gorilla contains 7.5 x 108 neurons.
Which mammal has more neurons?
25) Factor:
15xy – 18x2y
22) ___0.000468_____
23) __6.35 x 1011_____
20) _____10-3________
21) ____ __________
24) ___human_____
25) ___3xy(5 - 6x)____