On the Elevator: Add and Subtract Within 20

by Tom Rosado

Algebra is a foundational concept in the study of mathematics, and readers will delight in learning the principles of operations and algebraic thinking in a relatable and engaging way. Topics such as adding and subtracting within 20, using algebraic principles to solve equations and word problems, and understanding the relationship between addition and subtraction will give beginning math students a firm grasp on basic math concepts. Early readers...

• Format: Paperback
• Language: English
• ISBN: 147772124X
• ISBN13: 9781477721247
• Release Date: August 2013
• Publisher: Rosen Classroom
• Length: 24 Pages
• Weight: 0.20 lbs.
• Dimensions: 0.2" x 7.7" x 7.7"
• Age Range: 6 to 7 years
• Grade Range: Grades 1 to 2