Make planning math fast and stress-free with this 1st grade Mixed Addition & Subtraction Within 20 bundle. Every activity is ready to print and use, giving your students repeated practice with adding and subtracting within 20—perfect for small groups, centers, independent work, and early finishers. Files are delivered as printable PDFs so you can press “print” and teach. What you get: 5 resource types targeting within-20 fluency: Spin & Add game, Cut & Paste practice, Clip Cards, Task Cards, an