Addition 
Subtraction 
Multiplication 
Division 
Fractions 
Decimals & Percents 
Calculator Achievement 
Life-Skills Math Power 
Algebra 1 
Algebra 2 
Geometry 
Trigonometry 
Addition- Index
Addition
Unit 1: Adding One-Place Numbers
Lessons
- Introduction to Adding One-Place Numbers
- 7 Addition Facts
- 8 Adding Items
- 9 Adding One-Place Items
- 10 Adding One-Place Numbers
- 11 Problem-Solving
- 12-13 Review: Adding One-Place Numbers
Problems
- 8 Adding Items
- 9 Adding One-Place Numbers
- 10 Adding One-Place Numbers
- 11 Problem-Solving
- 12 Review: Adding One-Place Numbers
Tests
- 13 Test 1
- 14 Additional Help
- 15 Additional Help-Problem-Solving
- 16 Double-Check Test 1
- 86 Triple-Check Additional Help
- 87 Triple-Check Additional Help-Problem-Solving
- 88 Triple-Check Test 1
On Location
Unit 2: Adding Two-Place Numbers
Lessons
- Introduction to Adding Two-Place Numbers
- 17 One and Two-Place Numbers
- 18 Two-Place Numbers
- 19 Two-Place Numbers
- 20 Writing Larger Two-Place Numbers
- 21 All Two Place Numbers
- 23 Adding Two-Place Numbers
- 24 Adding Two-Place Numbers
- 25 Problem-Solving
- 26 Problem-Solving
- 27 Review: Adding Two-Place Number
Problems
- 17 One and Two-Place Numbers
- 18 Two-Place Numbers
- 19 Two-Place Numbers
- 20 Writing Larger Two-Place Numbers
- 22 Writing Two-Place Numbers
- 23 Adding Two-Place Numbers
- 24 Adding Two-Place Numbers
- 25 Problem-Solving
- 26 Problem-Solving
- 27 Review: Adding Two-Place Number
Tests
- 28 Test 2
- 29 Additional Help
- 30 Double-Check Test 2
- 89 Triple-Check Additional Help
- 90 Triple-Check Test 2
On Location
- Introduction to Adding Two-Place Numbers
- 17 One and Two-Place Numbers(1 of 2)
- 17 One and Two-Place Numbers(2 of 2)
- 18 Two-Place Numbers(1 of 2)
- 18 Two-Place Numbers(2 of 2)
- 19 Two-Place Numbers
- 20 Writing Larger Two-Place Numbers
- 21 All Two-Place Numbers
- 23 Adding Two-Place Numbers(1 of 2)
- 23 Adding Two-Place Numbers(2 of 2)
- 24 Adding Two-Place Numbers
- 25 Problem-Solving(1 of 2)
- 25 Problem-Solving(2 of 2)
- 26 Problem-Solving
- 27 Review: Adding Two-Place Number
Unit 3: Adding Three and Four-Place Numbers
Lessons
- Introduction To Adding Three and Four-Place Numbers
- 32 Adding Three-Place Numbers
- 33 Saying Three-Place Numbrers
- 34 Problem-Solving
- 35 Four-Place Numbers
- 36 Adding Four-Place Numbers
- 37 Problem-Solving
- 38 Review: Adding Two- to Four-Place Numbers
Problems
- 32 Adding Three-Place Numbers
- 33 Adding Three-Place Numbers
- 34 Problem-Solving
- 35 Four-Place Numbers
- 36 Adding Four-Place Numbers
- 37 Problem-Solving
- 38 Review: Adding Two- to Four-Place Numbers
Tests
- 39 Test 3
- 40 Additional Help
- 41 Double-Check Test 3
- 91 Triple-Check Additional Help
- 92 Triple-Check Test 3
On Location
- Introduction Adding Three and Four-Place Numbers
- 32 Adding Three-Place Numbers(1 of 2)
- 32 Adding Three-Place Numbers(2 of 2)
- 34 Problem-Solving
- 35 Four-Place Numbers
- 35 Adding Four-Place Numbers
- 36 Adding Four-Place Numbers(1 of 2)
- 36 Adding Four-Place Numbers(2 of 2)
- 37 Problem-Solving
- 38 Review: Adding Two to Four-Place Numbers
Unit 4: Adding Three or More Numbers
Lessons
- Introduction to Adding Three or More Numbers
- 42 Adding Three Numbers
- 44 Adding Four Numbers
- 45 Adding More Than Three Numbers
- 46 Problem-Solving
- 47 Adding Three Two-Place Numbers
- 49 Problem-Solving
- 50 Adding Three Three-Place Numbers
- 51 Adding Three Four-Place Numbers
- 52 Problem-Solving
- 53 Review: Adding Three and Four-Place Numbers
Problems
- 43 Adding Three Numbers
- 45 Adding More Than Three Numbers
- 46 Problem-Solving
- 47 Adding Three Two-Place Numbers
- 48 Adding Three Two-Place Numbers
- 49 Problem-Solving
- 50 Adding Three Three-Place Numbers
- 51 Adding Three Four-Place Numbers
- 52 Problem-Solving
- 53 Review: Adding Three and Four-Place Numbers
Tests
- 54 Test 4
- 55 Additional Help
- 56 Double-Check Test 4
- 93 Triple-Check Additional Help
- 94 Triple-Check Test 4
On Location
- Introduction to Adding Three or More Numbers
- 42 Adding Three Numbers
- 45 Adding More Than Three Numbers
- 46 Problem-Solving
- 47 Adding Three Two-Place Numbers(1 of 2)
- 47 Adding Three Two-Place Numbers(2 of 2)
- 49 Problem-Solving
- 50 Adding Three Three-Place Numbers(1 of 2)
- 50 Adding Three Three-Place Numbers(2 of 2)
- 52 Problem-Solving
- 53 Review: Adding Three and Four-Place Numbers(1 of 2)
- 53 Review: Adding Three and Four-Place Numbers(2 of 2)
Unit 5: Carrying Over Numbers
Lessons
- Introduction to Carrying Over Numbers
- 57 Adding Numbers With Various Place Value
- 59 Problem-Solving
- 60 Carrying Over Numbers
- 61 Problem-Solving
- 62 Carrying Over Two-Place Numbers
- 64 Problem-Solving
- 65 Perimeters of Squares, Rectangles, and Triangles
- 66 Carrying Over Three and Four-Place Numbers
- 67 Problem-Solving
- 68 The Number System
- 69 Saying and Writing Large Numbers
- 71 Problem-Solving-Thinking Math
Problems
- 57 Adding Numbers With Various Place Value
- 59 Problem-Solving
- 60 Carrying Over Numbers
- 61 Problem-Solving
- 62 Carrying Over Two-Place Numbers
- 63 Carrying Over Two-Place Numbers
- 64 Problem-Solving
- 65 Perimeters of Squares, Rectangles, and Triangles
- 66 Carrying Over Three and Four-Place Numbers
- 67 Problem-Solving
- 68 The Number System
- 70 Writing and Adding Large Numbers
- 71 Problem-Solving-Thinking Math
Tests
- 72 Test 5
- 73 Additional Help
- 74 Double-Check Test 5
- 95 Triple-Check Additional Help
- 96 Triple-Check Test 5
On Location
- Introduction to Carrying Over Numbers
- 57 Adding Numbers With Various Place Value
- 59 Problem-Solving (1 of 2)
- 59 Problem-Solving (2 of 2)
- 60 Carrying Over Numbers
- 61 Problem-Solving (1 of 2)
- 61 Problem-Solving (2 of 2)
- 62 Carrying Over Two-Place Numbers (1 of 2)
- 62 Carrying Over Two-Place Numbers (2 of 2)
- 64 Problem-Solving
- 64 Problem-Solving
- 66 Carrying Over Three and Four-Place Numbers (1 of 2)
- 66 Carrying Over Three and Four-Place Numbers (2 of 2)
- 67 Problem-Solving
- 69 Saying and Writing Large Numbers(1 of 3)
- 69 Saying and Writing Large Numbers(2 of 3)
- 69 Saying and Writing Large Numbers(3 of 3)
- 71 Problem-Solving-Thinking Math
Unit 6: Adding Money and Problem-Solving
Lessons
- Introduction to Adding Money and Problem-Solving
- 75 Adding Money
- 76 Problem-Solving
- 77 Problem-Solving
- 78 Problem-Solving: Conversion Problems
- 79 Picture Problems
Problems
- 75 Adding Money
- 76 Problem-Solving
- 77 Problem-Solving
- 78 Problem-Solving: Conversion Problems
- 79 Picture Problems
Tests
- 80 - 81 Final Examination
- 82 - 82 Additional Help: Final Examination
- 82 - 85 Double-Check Final Examination
- 97 - 98 Triple-Check Additional Help: Final Examination
- 99 - 100 Triple-Check Final Examination
- 101 - 102 Assessment: Addition Book 1
On Location
- Lessons
- Problems
- Tests
- On Location
- Lessons
- Problems
- Tests
- On Location
Menu
Placement TestUnit 1
Adding One-Place Numbers
Unit 2
Adding Two-Place Numbers
Unit 3
Adding Three and Four-Place Numbers
Unit 4
Adding Three or More Numbers
Unit 5
Carrying Over Numbers
Unit 6
Adding Money and Problem-Solving
Unit 1: Adding One-Place Numbers
- Introduction to Adding Two-Place Numbers06:52
- 8Adding Item(1 of 2)00:51
- 8Adding Item(2 of 2)01:12
- 10Adding One-Place Numbers04:26
- 11Problem-Solving(1 of 2)04:00
- 11Problem-Solving(2 of 2)01:17
- 12Review: Adding One-Place Numbers(1 of 2)02:55
- 12Review: Adding One-Place Numbers(2 of 2)04:15
Introduction to Addition
Carl Sommer demonstrates numerous examples where math is used, Knowledge of mathematics is essential for success, math tree, single digit examples, importance of building a solid foundation.