Fractions & Decimals
Convert the fraction into a decimal to the nearest hundredth:
7/8
0.88
Order the following numbers from least to greatest:
sqrt 25, 16/4, 6.5
16/4, sqrt 25, 6.5
What set does this number belong to?
pi
Irrational Numbers & Real
Which number is a rational number?
A. 1.42697 . . .
B. 0.22222 . . .
C. 5.236092 . . .
12^2
144
Estimate the square root to the nearest tenth:
sqrt(30)
5.5
Convert the decimal into a fraction (remember to simplify if necessary):
0.42
21/50
Compare the following numbers using inequality signs:
4.6 16/5
4.6 > 3.2
What is the simplest classification that ZERO belongs in?
Whole Numbers
Which number is not an irrational number?
A. sqrt15
B. 2pi
C. 13/2
sqrt(49)
7
Estimate the square root to the nearest tenth:
sqrt(85)
9.2
Convert the fraction into a decimal to the nearest hundredth:
7/9
0.bar7
Order the following numbers in ascending order:
0.2, 15%, 3/8
15%, 0.2, 3/8
Which answer is correct for classifying -3.2?
(A) It's a rational number and an integer
(B) It's an irrational number
(C) It's only a real number
(D) It's a rational number
D
The following are examples of what type of number?
15/2, 0.4, sqrt 36
Rational Numbers
sqrt(121)
11
Estimate the square root to the nearest tenth:
sqrt(160)
12.6
Convert the decimal into a fraction (remember to simplify if necessary):
0.175
7/40
Order the following numbers in descending order:
25%, 0.24, 4/15
0.24, 25%, 4/15
What's the simplest name for this number?
14/(-2)
Integer
(It's also a rational number & a real number.)
The following are examples of what type of number?
pi, sqrt 145, and 5.62749. . .
15^2
225
Estimate the square root to the nearest tenth:
sqrt(6)
2.4
Convert the repeating decimal into a fraction (remember to simplify if necessary):
0.bar16
16/99
Can you explain the process for turning a percent into a decimal and vice versa?
When changing a percentage to a decimal, you put the percent over 100 and then convert the fraction to a decimal by dividing the numerator by the denominator.
When changing a decimal to a percentage, you take the decimal and multiply it by 100.
I'm a terminating decimal. What classifications would you give me?
Real Number
Rational Number
What is the difference between a rational and an irrational number?
Rational numbers can be written as a fraction, include terminating and repeating decimals, and include square roots of perfect squares.
Irrational numbers cannot be written as a fraction, include non-terminating and non-repeating decimals, and include square roots of non-perfect squares.
sqrt(196)
14
Estimate the square root to the nearest tenth:
sqrt(600)
24.5