Adding 3 Numbers, Make a Ten, Missing Addends 1st Grad-Space Math worksheetDescription: Help your students master the foundational skill of making a ten with these fun and engaging worksheets! Perfect for building fluency in basic addition, these printables will guide young learners through strategies to quickly add numbers using the "Make a Ten" method. Ideal for kindergarten, first grade, or early elementary math centers, these activities combine learning with cute space-themed characters tha