The 4 Fact
The 4 Fact
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3.OA.7
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Use the 5-fact to efficiently access the 4-fact, e.g.
n x 5 - n = n x 4
(n x 5) - (n x 1) = n x 4
3.OA.7
Use the 5-fact to efficiently access the 4-fact, e.g.
n x 5 - n = n x 4
(n x 5) - (n x 1) = n x 4