Vocabulary
Factors are 2 numbers that multiply to get an answer. 3 x 2 =6 ; factors are 3 and 2
Find the absolute value of each number:
|30| , |-12| , |-7.52|
|30| = 30
|-12| = 12
|-7.52| = 7.52
Which number below is a multiple of 32?
2 , 16 , 64 , 91
64
Write the decimal as a fraction: 0.4
*SIMPLIFY*
4 / 10 = 2 / 5
(two-fifths)
23.828 divided by 0.28
85.1
Define a whole number and give an example.
A positive number that is not a decimal or fraction. Example: 3
Order the integers from LEAST to GREATEST:
0, 14, -13, 32, -43, -2
-43, -13, -2, 0, 14, 32
LCM: List the first five MULTIPLES of 9.
GCF: List ALL the FACTORS of 9.
LCM: 9, 18, 27, 36, 45
GCF: 1, 3, 9
David drove 204 miles on 8 gallons of gas. What is his unit rate as miles per gallon?
204 divided by 8 = 25.5 miles per gallon
65.55 divided by 2.5
26.22
An integer is a positive or negative whole number. Example: -40 and 40
1. A temperature thirty degrees below zero.
2. A gain of twenty two yards in football.
3. An elevation thirteen feet below sea level.
1. -30
2. 22
3. -13
Find the LCM (least common multiple) of 6 and 10.
LCM = 30
Write 7.55 as a simplified fraction.
7 and 55/100 = 7 and 11 / 20
(seven and eleven over 20)
13.75 x 5.5
75.625
Define what a prime number is. Then, define a composite number. Give an example of each.
Prime Number: a number with no more than 2 factors (7)
Composite Number: a number with more than 2 factors (10)
Complete each inequality below:
1. -17 ______ -15
2. |-6| ______ |-7|
3. |12| ______ -12
1. -17 _<_ -15
2. |-6| _<_ |-7|
3. |12| _>_ -12
List the common factors, AND find the GCF (Greatest Common Factor) of 12, 20, and 24.
Common Factors: 2, 4
GCF = 4
24 pencils cost a total of $1.20. How much would 6 pencils cost?
6 x $0.05 = $0.30 (30 cents)
40.01 x 5.5
220.055
Which statements that are true?
A. All integers are rational numbers
B. All rational numbers are integers.
C. -7.25 is an integer.
D. -7.25 is a rational number.
A and D.
Order the integers from LEAST to GREATEST:
|-23| , 0 , -7 , |10| , -64 , |-9| , -8
-64 , -8, -7, 0 , 9, 10, 23,
Create a factor tree AND find the Prime Factorization of 72.
** Remember: prime factorization is written as multiplication. (Example: 2 x 3 x 3 = 18) ***
Factor tree to be checked by Ms. Gable.
2 x 2 x 2 x 3 x 3 = 72 OR 23 x 32 = 72
Convert 3 and 9/16 (three and nine-sixteenths) to a decimal.
3.5625
(three and five thousand, six hundred and 25 thousandths)
89.94 x 9.4
845.436