Students rewrite 3- and 4-digit subtraction expressions as column subtraction and solve without regrouping
B. Solve 4-digit column subtraction with regrouping (Level 1)
C. Solve 4-digit column subtraction with regrouping (Level 2)
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