Unit 1: Review (Math 8)
Irrational Number
a decimal number that is non-repeating and non-terminating
Rational Number
a decimal number that terminates and is repeating
Set
a list of related things
Scientific Notation
a method of expressing a quantity as a number multiplied by 10 to the appropriate power
Square Root
a number that when multiplied by itself equals a given number
subset
a part of a larger group of related things
What are you finding when you square a numbers?
area
Which of the following is true?
The set of irrational numbers does not contain any natural numbers.
Integers
The set of whole numbers and their opposites
Whole Numbers
Natural numbers ( counting numbers) and zero; 0, 1, 2, 3...
Write 2.9 x 10^-5 in standard notation.
0.000029
Which of the following is a rational numbers?
0.2727...
Write 0.00000001379 in scientific notation.
1.379 x 10^-8
Write 137,900,000 in scientific notation.
1.379 x 10^8
Write 2.9 x 10^5
290,000
What is the best estimate of the square root of 199?
A number between 14 and 15.
What is the best estimate of the square root of 119?
A number greater than 10.5 but less than 11.
Which point on the numberline best represents the square root of 57?
Q
Which point on the numberline best represents the square root of 75?
R
Which of the following is false?
Rational numbers are a subset of integers.
What are you finding when you square root a number?
side length