Which of these shows a base of 6 and an exponent of 3?
a. 6.3
b. 63
c. 3.6Solve the problem: 22,300
a. 2.23 x 104
b. 2.3 x 102
c. 2.23 x 105
a. 2.23 x 104
Which of these is not a rational number?
a. 5
b. 1/5
c. square root of 5
c. square root of 5
Remember, a rational number is "any number that can be written as a fraction". The square root of 5 = 2.236067... (this decimal does not terminate or repeat so it is irrational)
What is the square root of 64?
a. 16
b. 12
c. 8
c. 8
Solve the problem: -2 + 5 =
a. 7
b. 3
c. -3
b. 3
Solve the problem: 43
a. 12
b. 64
c. 4.3
B. 64
Solve the problem: 7.8 x 10-5
a. 0.0078
b. 0.000078
c. 0.00078
b. 0.000078
Which number is shown by point B on the number line?
a. -3.3
b. -3.9
c. 3
a. -3.3
The square root of 15 is between what two digits?
a. 3 and 4
b. 5 and 6
c. 1 and 2
a. 3 and 4
Solve the problem: 6- (-3)=
a. 9
b. 3
c. -9
a. 9
What is the reciprocal of 2-3 ?
a. 1/2 3
b. 1/2
c. 2
Solve the problem: 0.00000024
a. 2.4 x 10-7
b. 2 x 10-5
c. 2.4 x 10-9
a. 2.4 x 10-7
Which of these is a whole number?
a. 6
b. 1.2
c. the square root of 3
a. 6
What is the cube root of -64?
a. not a real number
b. -24
c. 4
a. not a real number
Solve the problem: -4 x 5 =
a. -9
b. -20
c. 1
b. -20
Solve the problem: 47 x 4-2 =
a. 28
b. 16, 384
c. 1,024
C. 1,024
Solve the problem: 3.2 x 106
a. 3,200
b. 32,000
c. 3,200,000
c. 3,200,000
Which answer is not a real number?
a. the square root of 25
b. the square root of -36
c. the square root of 125
b. the square root of -36
What is the additive inverse of -7?
a. 0
b. 7
c. -7
b. 7
Solve the problem: -4 + 3 =
a. -1
b. 1
c. 7
a. -1
Solve the problem: (1/4)-2 x 8-2 =
a. 1/4
b. 1
c. 0
A. 1/4
Compare the following scientific notation numbers:
2.8 x 105 ____ 1.7 x 107
a. <
b. >
c. =
a. <
Solve the problem: the absolute value of -2.1
a. 1.2
b. 2.1
c. 2.12
b. 2.1
What is the cube root of 36 rounded to two decimal places?
a. 3.30
b. 3.301
c. 3.3
a. 3.30
Solve the problem: -6 x -8 =
a. -48
b. 14
c. 48
c. 48