Table of Contents Number Sense Lesson 1 1 Sets: An Introduction …………………………………... Lesson 2.1: Union and Intersection of 5 Sets ……………………….. Lesson 2.2: Complement of a 9 Set ………………………………….. Lesson 3: Problems Involving Sets 13 ………………………………. Lesson 4.1: Fundamental Operation on Integers: Addition of 18 Integers ………………………………………………. Lesson 4.2: Fundamental Operation on Integers: Subtraction of 22 Integers ………………………………………………. Lesson 4.3: Fundamental Operation on Integers: Multiplication of 27 Integers ………………………………………………. Lesson 4.4: Fundamental Operation on Integers: Division of Integers 30 ………………………...…………………….. Lesson 5: Properties of the Operations on Integers 33 ……………. Lesson 6: Rational Numbers in the Number 41 Line ………………. Lesson 7: Forms of Rational Numbers and Addition and Subtraction of Rational Numbers 45 ……………….. Lesson 8: Multiplication and Division of Rational Numbers 53 ……. Lesson 9: Properties of the Operations on Rational Numbers 59 … Lesson 10: Principal Roots and Irrational Numbers 64 ……………… Lesson 11: The Absolute Value of a Number 70 …………………….. Lesson 12: Subsets of Real Numbers 76 …………………………….. Lesson 13: Significant Digits and the 83 Scientific Notation ………... Lesson 14: More Problems Involving Real Numbers 87 …………….
Table of Contents Number Sense Lesson 1 Sets: An Introduction …………………………………... 1 Lesson 2.1: Union and Intersection of Sets ……………………….. 5 Lesson 2.2: Complement of a Set ………………………………….. 9 Lesson 3: Problems Involving Sets ………………………………. 13 Lesson 4.1: Fundamental Operation on Integers: Addition of Integers ………………………………………………. 18 Lesson 4.2: Fundamental Operation on Integers: Subtraction of Integers ………………………………………………. 22 Lesson 4.3: Fundamental Operation on Integers: Multiplication of Integers ………………………………………………. 27 Lesson 4.4: Fundamental Operation on Integers: Division of Integers ………………………...…………………….. 30 Lesson 5: Properties of the Operations on Integers ……………. 33 Lesson 6: Rational Numbers in the Number Line ………………. 41 Lesson 7: Forms of Rational Numbers and Addition and Subtraction of Rational Numbers ……………….. 45 Lesson 8: Multiplication and Division of Rational Numbers ……. 53 Lesson 9: Properties of the Operations on Rational Numbers … 59 Lesson 10: Principal Roots and Irrational Numbers ……………… 64 Lesson 11: The Absolute Value of a Number …………………….. 70 Lesson 12: Subsets of Real Numbers …………………………….. 76 Lesson 13: Significant Digits and the Scientific Notation ………... 83 Lesson 14: More Problems Involving Real Numbers ……………. 87
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