Froggie's School Goodies proudly presents:
CCSS Math Fluency Facts within 20 with Missing Addends and Sums
This file has it all! 293 pages of math addition facts!!! Each fact is displayed in three different ways: with each of the addends as the unknown and as the sum as the unknown. All facts are present within 20. Simply print and cut them apart!
When you print the file if you want the answers on the back as flash cards you must separate the file into 2 files and print the first set then print the second set on the back. Or you can just print the facts without the answers and write them on the back if you choose.
Hope you enjoy!!! You can also purchase Avery 3263/Office Depot Post-Cards and snapping apart is EASY!