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Jack broke apart 5×216 as (5×200)+(5×16) to multiply mentally. What strategy did Jack use?

Jack broke apart 5×216 as (5×200)+(5×16) to multiply mentally. What strategy did Jack use?
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Jack broke apart 5×216 as (5×200)+(5×16) to multiply mentally. What strategy did Jack use?

User Jonas Tomanga
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he either used division or multiplication  
User Zirkelc
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User DoamnaT
asked Dec 9, 2017 98.7k views
Jack broke apart 5×216 as (5 X 200 ) + (5 X 16) to multiply mentally what strategy did Jack Use?
DoamnaT asked Dec 9, 2017
by DoamnaT
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