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Monday, February 9, 2009

Handy Facts

Multiplication

We are beginning our unit on Multiplication. Students have already been introduced to multiplication using pictures and words. Students will now take their prior knowledge and begin studying multiplication facts. We will be working with 0, 1, 2, 3, 5, and 10. These were chosen because these multiplication facts are easy to remember and are familiar to students.
Students will use a multiplication table to record and retrieve multiplication facts.
The students will be able to identify and use patterns for multiplication facts 0, 1, 2, 3, 5, and 10.
Key Vocabulary
Factor
Multiple
Product
The Language of Multiplication. 3 X 5= 15. We say fifteen is the product of three and five. We say fifteen is a multiple of 3 because it is the product of 3 and another whole number 5. Five and three are called factors of 15.
Patterns for Remembering the Facts
Patterns for 0: All multiples of 0 are 0
Patterns for 1: Any number times 1 is itself
Patterns for 2: All multiples of 2 are even
All multiples of 2 are doubles
All multiples of 2 end in 0, 2, 4, 6, or 8
Patterns for 5: All multiples of 5 end in 0 or 5.
When even numbers are multiplied by 5, the product ends in 0.
When odd numbers are multiplied by 5, the product ends in 5.
Patterns for 10: All multiplies of 10 end in 0
When ten is multiplied by any number, the product is the same
number with an extra 0 on the end.
Practice:
Use the flashcards to help your child with their multiplication facts. Work on 0, 1, 2, 3, 5, and 10's.
Links:
Multiplication Websites with Multiplication Tables

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