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Unit 7 – Radicals
Text 1.5
Day 1:
Vocabulary
72. Real Numbers: all numbers that can be represented on the __________________
EX:
73. Natural Numbers: are the ______________ numbers.
EX:
74. Whole Numbers: are the Natural Numbers and ____________.
EX:
75. Integers: are whole numbers and their ________________.
EX:
76. Rational Numbers: can be expressed in the form ________, where a and b are
both integers and b ≠ 0.
EX:
77. Terminating Decimals: are rational numbers in decimal form that have a
__________ number of digits.
EX:
78. Repeating Decimals: are rational numbers in decimals form that have a block of
one or _____________ digits that repeat continuously.
EX:
79. Irrational Numbers: cannot be expressed in the form __________. They include
square roots of whole numbers that are not perfect squares and non-terminating
decimals that do not repeat.
EX:
Classifying Real Numbers: Write all classifications that apply to each real number
8/9 –
18 –
√20 –
Day 2:
80. Square Root: A number that is _________________________ to form a product.
EX:
81. Perfect Square: a number whose positive square root is a ________________.
EX:
82. Radical Expression: An expression that contains a __________________.
EX:
83. Radicand: The number or expression ____________ the ____________ sign.
84. Like Radicals- Radical terms having the same _______________.
Complete the table
Number
1
(square root)
2
3
4
5
6
7
8
9
10
11
12
Perfect
Square
Finding Square Roots of Perfect Squares: Find each square root.
√49 =
-√36 =
√1/4 =
Estimate the square root: Use the number line to estimate the square root.
-10 -9 -8 -7
√19
-6
-5
-4 -3
√48
-2
-1
0
1
2
3
-√98
Estimate to the nearest tenth.
√99
√40
√70
4
5
6
7
8
9
10
13
14
15
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