Adding and Subtracting Decimal Fractions: Summary: Adding and Subtracting Decimal Fractions
This clip summarizes the main points of adding and subtracting decimal fractions. It revisits the idea that adding decimal fractions depends on lining up the addends by place value. The clip says that the easiest way to ..
Adding and Subtracting Rational Expressions
The rules for adding and subtracting rational expressions are similar to those for adding and subtracting rational numbers, beginning with the rule that in order to be added, rational numbers must have the same denominat..
Addition Property of Equality, The
The addition property of equality is explained and demonstrated.
Addition is a Binary Operation
The rule for adding numbers.
Addition of Whole Numbers, Part 2: Carrying
This clip explains what it means to carry when adding multi-digit whole numbers.
Addition of Whole Numbers, Part 2: Summary: Addition of Whole Numbers, Part Two
This clip summarizes the process of finding the sum of two or more whole numbers and, in so doing, revisits the use of expanded notation.
Addition of Whole Numbers, Part 2: Three Practical Problems
This clip provides three real-world examples of how the ability to add whole numbers can be useful. The examples include calculating the following: the total number of miles driven during a multi-day trip, the total numb..
Addition of Whole Numbers, Part 2: Three Things to Remember About Addition of Whole Numbers
This clip reviews the key points about adding whole numbers. The first of these is that there are 100 addition facts that need to be memorized. The second is the idea of expanded notation. Third is the notion that, when ..
Addition of Whole Numbers, Part I: 100 Addition Facts, The
This clip explains that there are 100 addition facts that should be learned so that they become as automatic as knowing that the letter "b" comes after the letter "a" in the alphabet.
Addition of Whole Numbers, Part I: Addition Tricks and Hints
This clip presents a variety of hints and tricks that make learning the 100 addition facts simple and automatic. Among these are the identity for addition, and re-grouping addends in the easiest possible order.