Students solve 4-digit column subtraction equations with two instances of regrouping
A. Use column subtraction with multi-digit numbers
B. Solve 4-digit column subtraction with regrouping (Level 1)
D. Write and solve multi-digit column subtraction
E. Write and solve multi-digit column subtraction with regrouping
F. Solve 5-digit column subtraction with regrouping
G. Pretest. Finding the Area and Perimeter of a Rectangle