Basic Facts Subtraction Flashcards
This Unit Includes:
Flash Cards - grouped by differences (large size for large group/classroom use)
Small Flashcards - for stations or individual use
Common Core Standards Covered:
First Grade Math Content:
1.OA.B.3 Apply properties of operations to add and subtract.
1.OA.C.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10
Second Grade Math Content:
2.OA.B.2 Fluently add and subtract within 20 using mental strategies.
By end of Grade 2 know from memory all sums of two one-digit numbers