Addition and subtraction greater than 1000 (K-A)

Adding multi-digit numbers: 48,029+233,930 (K-A)

Alternate mental subtraction method (K-A)

Multi-digit addition with regrouping (K-A)

Multi-digit subtraction with regrouping twice (K-A)

Multi-digit subtraction with regrouping: 6798-3359 (K-A)

Multi-digit subtraction with regrouping: 7329-6278 (K-A)

Multi-digit subtraction: 389,002-76,151 (K-A)

Relate place value to standard algorithm for multi-digit addition (K-A)

Relate place value to standard algorithm for multi-digit subtraction (K-A)