Subtraction to 20 | Missing Subtrahend

by Michelle Staley

Price: 300 points or $3 USD

Subjects: math

Grades: 1,2

Description: This prickly deck will give your students practice with subtraction within 20 by finding the missing subtrahend. The related Common Core State Standards are below. Understand and apply properties of operations and the relationship between addition and subtraction. CCSS.MATH.CONTENT.1.OA.B.3 Apply properties of operations as strategies to add and subtract. 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.