I created this Addition and Subtraction to 20 set of cards for students to review facts to 20 at the beginning of 2nd grade. There are 48 addition facts and 48 subtraction facts. There are also 48 answer cards using pictures of math cubes (unifix cubes) and 48 answer cards using 10-frames.
I created the answer cards to fit BOTH the addition and subtraction sets, so there is one subtraction problem (20-0) that had to be used twice. There is also a blank card in the math cubes set due to an answer being 0.
By having the sets mix and match, you can fit your students' need without having to purchase loads of card stock and ink! My kiddos lay the cards out on the floor (or another available workspace) and match up the answer cards to the problems.
For example, I’ve got a set of addition cards with the math cube answers and a set of addition cards with the 10-frames answers. I’ve done the same with the subtraction sets. It’s like having four separate centers/workstations set up since no two groups are completing the same activity. I’ve also printed out extra sets of the addition and subtraction cards to put with manipulatives, and also a set that I’ve combined for students who are ready for mixed problems!
You can also print front-to-back (my printer calls the layout short-edge binding) to make true flashcards. This would be great for two students to work together, since the answer must be deciphered using cubes or ten frames.
I hope I’ve given you some great ideas on how to use these cards in your classroom! For more fun ideas, visit my teaching blog! www.asking4seconds.blogspot.com! Thanks!
Valerie at http://www.teacherspayteachers.com/Store/Valerie-Lynch