Stacks- Upside down Birthday Cake
I add several links to stacks and a teaching tool that I use to teach PF (prime factorization), GCF (greatest common factors), LCM (least common multiples). I love this!
Organization for Absent Work
Fractions - LCF
Fractions - Mixed Numbers
Fractions - Mixed Numbers Part 2
Multiplicative Inverse or Reciprocals