Elevator magic /
Murphy, Stuart J.,1942-
Karas, G. Brian,illustrator.
New York, NY : HarperCollins,
[2016?], ©1997.
Explains the concept of subtraction through a rhyming text about a descending elevator.
"Ages 6 up" -- Back cover.
"Level 2, subtracting."
Includes bibliographical references (page 33).
Explains the concept of subtraction through a rhyming text about a descending elevator.
Subtraction