
Multiplication of Rational Numbers
Presentation
•
Mathematics
•
7th Grade
•
Hard
Joseph Anderson
FREE Resource
5 Slides • 4 Questions
1
Lesson 1.7:
Multiply Rational Numbers
2
Today's Goal:
In today's lesson, we will apply what we have learned about multiplying integers and apply it to rational numbers as well:
Reminder: Even number of negative signs ==> positive product
Odd number of negative signs ==> negative product
3
4
Multiple Choice
−54×−87
−107
−1311
107
131
5
Multiple Choice
54×−119
5536
−5536
−1613
1613
6
-0.05 X 8.2
7
Multiple Choice
-1.5 X 2.3
-3.45
3.45
-3.8
0.8
8
Multiple Choice
-1.8 X - 2.1
-3.78
3.78
-3.9
0.3
9
Conclusion: Write two complete sentences about what you learned.
I learned when multiplying rational numbers I use the ____ rules as multiplying integers.
When multiplying fractions I will multiply ____ ____.
When multiplying decimals I count the _____.
Lesson 1.7:
Multiply Rational Numbers
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