The 5 Fact
The 5 Fact
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3.OA.7
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About This Sprint
Skip count by fives to multiply by five, e.g. 5 + 5 + 5 = 3 x 5
Use the 5-fact to efficiently access the 6, 7, & 8 facts e.g.
5 x 5 + 5 = 6 x 5
5 x 5 + 5 + 5 + 5 = 8 x 5
(5 x 5) + (5 x 2) = 7 x 5
Use 10 x 5 to efficiently 9 x 5, e.g.
5 x 10 - 5 = 9 x 5
(5 x 10) - (5 x 1) = 9 x 5