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Array - PowerPoint PPT Presentation


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Array. Objects or symbols displayed in rows of the same length. The length of the row may be different than the length of the column. . Communicative Property of Multiplication. The order in which two numbers are multiplied does not change the product. 2 X 4 = 8 4 X 2 = 8 2 X 4 = 4 X 2.

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Presentation Transcript
array
Array
  • Objects or symbols displayed in rows of the same length. The length of the row may be different than the length of the column.

Chapters 4 & 5

communicative property of multiplication
Communicative Property of Multiplication
  • The order in which two numbers are multiplied does not change the product.

2 X 4 = 8

4 X 2 = 8

2 X 4 = 4 X 2

Chapters 4 & 5

factor
Factor

2 X 4 = 8

  • A number that is multiplied by another number.
  • A number that divides into a whole number evenly.

8 4 =2

Chapters 4 & 5

identity property of multiplication
Identity Property of Multiplication
  • If you multiply a number by 1, the product is the same as the given number.

2 X 1 = 2

Chapters 4 & 5

multiply
Multiply

2 X 4 = 8

Two groups of four is equal to the product eight. Also known as repeated addition.

2 + 2 + 2 + 2= 8

  • Find the product

Chapters 4 & 5

product
Product
  • The answer to a multiplication problem.

2 X 4 = 8

Chapters 4 & 5

zero property of multiplication
Zero Property of Multiplication
  • Any number multiplied by zero is zero.

2 X 0 = 0

Chapters 4 & 5

associative property of multiplication
Associative Property of Multiplication
  • The grouping of the factors does not change the product.

(3 X 2) X 6 = 36

3 X (6X 2) = 36

Chapters 4 & 5

slide9
Rule

Rule: Multiply by 3

  • Tells you what to do to the first number to get the second number.

Chapters 4 & 5