Help students build number sense and estimation skills with this interactive Adding and Subtracting Decimals by Rounding Boom Cards™ deck! 💡 In this engaging activity, students round each decimal to the nearest whole number, then add or subtract to find a quick, reasonable estimate. Each card guides learners through the process step-by-step, reinforcing their understanding of place value, rounding rules, and reasonableness of answers. Perfect for 5th grade math or as a review for 4th g