Cactus Math: Addition & Subtraction BUNDLE

by Michelle Staley

Price: 800 points or $8 USD

Subjects: math

Grades: 1,2,3

Description: This prickly bundle include addition and subtraction practice within 20 without regrouping. This bundle includes: -Cactus Addition: Adding within 20 -Cactus Addition: Missing Addend -Cactus Subtraction: Subtraction within 20 -Cactus Subraction: Missing Subtrahend CCSS: Represent and solve problems involving addition and subtraction. CCSS.MATH.CONTENT.1.OA.A.1- Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. CCSS.MATH.CONTENT.1.OA.A.2- Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. CCSS.MATH.CONTENT.1.OA.B.3- Apply properties of operations as strategies to add and subtract CCSS.MATH.CONTENT.1.OA.B.4- Understand subtraction as an unknown-addend problem. Add and subtract within 20. CCSS.MATH.CONTENT.1.OA.C.5-Relate counting to addition and subtraction. CCSS.MATH.CONTENT.1.OA.C.6-Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten; decomposing a number leading to a ten; using the relationship between addition and subtraction; and creating equivalent but easier or known sums.