The Real Numbers
Counting numbers are also called...
Natural Numbers
Numbers that are ordered from greatest to least are __________
descending
3.216
RATIONAL
Which numbers are perfect squares?
0, 1, 2, 4, 6, 9, 12, 14, 16
1, 4, 9, 16
What is the name of this symbol?
sqrt
Radical Sign
Real Numbers are divided into 2 main sets:
Rational and Irrational Numbers
Numbers ordered from least to greatest are ___________
ascending
sqrt(56)
IRRATIONAL
92
81
What are the two square roots of 25?
5, -5
Rational Numbers are rational because they can be expressed as __________
Ratios (fractions)
It's used to write very small or large numbers
(a number x a power of ten)
scientific notation
pi
IRRATIONAL
DAILY DOUBLE
If a square garden has an area of 289, how long is one side of the fence?
17
Square roots and Perfect squares have an ___________ relationship
Inverse (or opposite)
Zero is rational but not a _____________ number.
Natural Number
Which number makes this sentence true?
32 > __________ > 165%
sqrt(11), 18/6 , 1 1/2
18/6
4.3232...
RATIONAL
162
256
These roots are always rational.
perfect squares
All Irrational Numbers have these two 'non" characteristics.
non-repeating and
non-terminating.
Put these numbers in descending order:
sqrt(400)
52
3.21 x 102
3.21 x 102
52
sqrt(400)
6.475...
IRRATIONAL
182
324
All non-perfect square square roots belong to this subset of the Real Numbers.
Irrational Numbers