My students love task cards, but they get frustrated when they aren't sure if they got the correct answer or not. I made these so students have the option to match them up with the answer as a means of checking their work. We also use these for search and rescue games in my classroom.
You cut out the cards and you cut the answer off of the task card. I recommend laminating for a longer lifespan. You can either use them with the answers or without. Whatever works for you and your kiddos!