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Multiplying Whole Numbers, Part 1: Summary: Multiplying Whole Numbers, Part One
00:57

Multiplying Whole Numbers, Part 1: Summary: Multiplying Whole Numbers, Part One

This clip summarizes multiplication of whole numbers, including the relationship between addition and multiplication, the use of arrays, and the results when multiplying numbers by one or zero.

Multiplying Whole Numbers, Part 1: Identity For Multiplication, The
00:47

Multiplying Whole Numbers, Part 1: Identity For Multiplication, The

This clip explains that, just as zero is the identity for addition, the number 1 is the identity for multiplication because, any number, when multiplied by 1, "...isn't changed at all."

Multiplying Whole Numbers, Part 1: Arrays
07:51

Multiplying Whole Numbers, Part 1: Arrays

This clip explains that one way to look at multiplication is through a pattern of columns and rows known as an array.

Multiplying Whole Numbers, Part 1: Multiplication Problems
01:07

Multiplying Whole Numbers, Part 1: Multiplication Problems

This clip presents a number of multiplication problems and challenges the viewer to use arrays in solving them.

Multiplying Whole Numbers, Part 1: Multiplication By Zero
01:39

Multiplying Whole Numbers, Part 1: Multiplication By Zero

This clip explains that the product of any number multiplied by zero is zero.

Multiplying Whole Numbers, Part 2: Multiplication Facts For 3
01:59

Multiplying Whole Numbers, Part 2: Multiplication Facts For 3

This clip explains that multiplying by 3 "…is like walking along the number line with steps three units long."

Multiplying Whole Numbers, Part 2: Multiplication Facts Table and Multiplication Facts for 1 and 0, The
01:24

Multiplying Whole Numbers, Part 2: Multiplication Facts Table and Multiplication Facts for 1 and 0, The

This clip introduces a table as a means by which to learn multiplication facts. It also reviews multiplication of whole numbers by 1 and 0.

Multiplying Whole Numbers, Part 2: Multiplication Facts For 4 and 8
06:04

Multiplying Whole Numbers, Part 2: Multiplication Facts For 4 and 8

This clip suggests the use of arrays or the number line to learn the facts about multiplication by 4. It states that multiplication facts for 8 are essentially the same as those for 4 but doubled. The clip also reiterates the fact that multiplying a...

Multiplying Whole Numbers, Part 2: Multiplication Facts For 5 and 2
03:55

Multiplying Whole Numbers, Part 2: Multiplication Facts For 5 and 2

This clip explains that when two factors change places in a multiplication problem, the product remains the same. It then explains the multiplication facts for 5 and 2, noting that exercises can be completed with the help of a number line. The clip ...

Multiplying Whole Numbers, Part 3: Multiplying by a Number With a Zero in the Middle
01:36

Multiplying Whole Numbers, Part 3: Multiplying by a Number With a Zero in the Middle

This clip explains that there's more than one way to multiply numbers with a zero in the middle. It suggests that for those just learning multiplication, there's less chance of error if one writes out the full row of zeroes in the partial product, r...