▪Βιντεομαθήματα (Ι)

Chapter 1: Properties of Arithmetic

Section 1.2: Commutative Property of Addition
Section 1.2: Associative Property of Addition
Section 1.2: Sum the Numbers from 1 to 100
Section 1.3: Distributive Property
Section 1.3: Why Do People Say that Repeated Addition is Multiplication?
Section 1.5: Subtraction with Negatives Part 1
Section 1.5: Subtraction with Negatives Part 2
Section 1.5: Subtraction Problems
Section 1.5: Subtraction and the Distributive Property
Section 1.6: What's a Reciprocal?
Section 1.7: Introduction to Division
Section 1.7: Dividing a Sum by a Number