These 10 Halloween logic puzzles sharpen multiplication and division fact fluency and are great math enrichment for 3rd, 4th, and 5th grade! These October brain teasers make great math centers and activities. Fast finishers use their math fact critical thinking skills to find the missing factors in each equation using multiplication and division fact families. These Halloween multiplication puzzles are perfect for adding a spooky twist to Halloween math stations, morning work, problem of the day