Your students will love practicing 3-digit addition within 1000 with these fun, engaging fall-themed BOOM™ cards! Problems include addition of 3-digit numbers with and without regrouping using the standard algorithm, the break apart method, rounding, and base ten blocks. This deck includes 36 cards perfect for practicing 3rd grade math standard 3.NBT.2 throughout the fall months. Multiple card types included to provide a variety of practice. BOOM™ cards are self-checking task cards that provide