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SRA Connecting Math Concepts Grade 4 Level D Answer Key (A Direct-Instruction Program): Siegfried Engelmann, Owen Engelmann, Douglas Carnine: 9780574156464: Amazon.com: Books
Cambridge Mathematics Direct 4 Numbers and the Number System Copymasters: Crowden, Jane, Cowling, Sandy, King, Andrew, Mumford, Jeanette: 9780521784689: Amazon.com: Books
Maths Direct: 9780003224955: Amazon.com: Books
Connecting Math Concepts Level D Presentation Book 2: 9780021036172: Amazon.com: Books
Amazon.com: Cambridge Mathematics Direct 3 Numbers and the Number System Solutions: 9780521798211: Adams, Mark, Huggins-Cooper, Lynn, King, Andrew, Mumford, Jeanette, Reynolds, Marian: Books