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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