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39×5=5×( x 1)=(5× )-(5×1)= - =
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4 votes
39×5=5×( x 1)=(5× )-(5×1)= - =

User Amy Brown Greer
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4 votes

39×5=5×( x 1)=(5× )-(5×1)=

39 = 40 - 1

39 * 5 = 40 * 5 - 1 * 5

39×5=5×(39 x 1)=(5×40 )-(5×1)=

User Primm
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