Starting a new Lecture Notes Series on Basic addition and subtraction | Early Math | Khan Academy
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Basic addition and subtraction | Early Math | Khan Academy
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Lecture 1: Addition word problems within 10
Lecture 2: Adding to 10
Lecture 3: Making 5
Lecture 4: Introduction to subtraction
Lecture 5: Getting to 10 by filling boxes
Lecture 6: Introduction to addition
Lecture 7: Pieces of fruit
Lecture 8: Subtraction word problems within 10
Lecture 9: Relating addition and subtraction