Halloween Math Worksheets Bundle | Adding Multiple Sets of Numbers | 1-3 Digit Addition with 3-5 Numbers | 360 Pages with Answer Key360 Pages ( 180 Worksheets 180 Answers )Bring spooky fun into your classroom with this Halloween Math Worksheets Bundle! This massive resource includes 360 pages of addition practice, covering 1-digit, 2-digit, and 3-digit numbers with 3, 4, and 5 numbers to add. Perfect for helping students master multi-number addition while enjoying a festive Halloween theme.