Lesson 4 Multiplying Rational Numbers.notebook October 20, 2014 Outcomes * Demonstrate an understanding of raonal numbers by: • comparing and ordering raonal numbers • solving problems that involve arithmec operaons on raonal numbers . review Natural Numbers Whole Numbers Decimals/Fractions Integers Rational Numbers Irrational Numbers Real Numbers Draw This!
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Lesson 4 Multiplying Rational Numbers.notebook October 20, 2014
Outcomes
* Demonstrate an understanding of raonal numbers by:
• comparing and ordering raonal numbers
• solving problems that involve arithmec operaons on raonal numbers .
review
Natural
Numbers
Whole Numbers
Decimals/Fractions
Integers
Rational Numbers Irrational Numbers
Real Numbers Draw This!
Lesson 4 Multiplying Rational Numbers.notebook October 20, 2014
Review Your Skills
Whiteboard Question
Multiplying Decimals
Example
When multiplying decimals, there is one question you need to ask yourself.
1) How many numbers are behind the decimals?
» this is how many numbers will have to be behind the decimal in the answer.
Once you have answered that question you can multiply the numbers like there are no decimals and put the decimal in after.
Examples. Show ALL work.
Lesson 4 Multiplying Rational Numbers.notebook October 20, 2014
Multiplying FractionsWhen multiplying fractions:
Switch ALL mixed fractions to improper fractions first!!!
Then Multiplying straight across
numerator x numerator denominator x denominator
Then: The same rules apply for integers when multiplying fractions.
x = +
+ x =
+ x + = +
x + =
Lesson 4 Multiplying Rational Numbers.notebook October 20, 2014
Practice Your Skills!
Page 127129
Stage 1: 3,5,7,9, 10
Stage 2: 6, 12, 14,18
Review Your Skills
Whiteboard Question
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