Mental Multiplication

Students discover how to multiply large numbers in their heads using some simple techniques. They understand that multiplying by 5 is done by multiplying by 10 and cutting the answer in half. They also understand that multiplying by 9 is done by multiplying by 10 and subtracting the other factor.

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Concepts

Resource Details

Grade
5th - 8th
Subjects
Math
1 more...
Resource Type
Lesson Plans
Instructional Strategy
Skills Practice
Usage Permissions
Fine Print