5 1 50 Lower Elementary 6-9 Dale Gausman Additional Author NAMC Primary Author mixed material Hoboken, NJ Innovative Kids 2006 cover_math-1-lower-elementary-6-9-20240619133349.jpeg Roger Primary Author Mary Hurt Primary Author mixed material 9780721407050 Ladybird Books cover_fun-with-subtraction-20230216091620.jpg Joy Hulme Primary Author Carol Schwartz Primary Author mixed material 9780786821426 Hyperion Books for Children 1996 cover_sea-sums-20230208095744.jpg Learning About Subtraction from Hua Mei and Mei Sheng Ann Whitehead Nagda Primary Author mixed material 9780805076448 Henry Holt and Co. (BYR) 2005 cover_panda-math-learning-about-subtraction-from-hua-mei-and-mei-sheng-20230202145953.jpg Stuart J. Murphy Primary Author G. Brian Karas Primary Author mixed material 9780064467094 HarperCollins Publishers 1997 cover_elevator-magic-20230202102501.jpg