Helpful Math Links! 

https://www.youtube.com/watch?v=tDQipFjAoT8

Subtracting Mixed Numbers:https://www.youtube.com/watch?v=_ymjIdnfYUg

Subtracting Mixed Numbers with Regrouping: https://www.youtube.com/watch?v=r3M68V9Joac

https://www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-add-sub-fractions/v/visually-adding-fractions-with-unlike-denominators

https://www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-add-sub-fractions/v/adding-small-fractions-with-unlike-denominators?modal=1

Helpful Math Videos for Multi-Digit Multiplication and Long Division