These QR codes are a great way to have your students practice problem solving skills while also using today's technology. All you need is a QR code reader on a phone, iPod, iPad, or tablet. There are 25 different codes and each one has a word problem to solve. The word problems include addition (with multiple addends), subtraction, missing addends, equal parts, money, and time. The cards can be printed out and placed at stations or around the room for a rotational activity. They can also be scanned while being shown from a projector for a whole group activity. The cards are created as a full page because it makes them easier to scan for the younger students. You can also print them into smaller cards by choosing the multiple page choice when printing. Hope you like it!