Make 3-digit addition and subtraction practice engaging with these self-checking math task cards!This set includes 24 word problem task cards that require students to add or subtract 3-digit numbers using real-world contexts. Perfect for math centers, Scoot games, early finishers, or test prep, these cards provide meaningful practice while promoting independence. Built-in QR Code Self-Checking: Each task card includes a QR code that students can scan to check their answers - no prep or gradin