Practice subtraction of two 3-digit numbers with regrouping twice. Hints are given about how to complete the subtraction in column form
A. Subtract 2-digit numbers using the standard algorithm with regrouping
B. Subtract 2-digit numbers using the standard algorithm with regrouping to solve word problems
C. Subtract 3-digit numbers using the standard algorithm with regrouping (Level 1)
D. Subtract 3-digit numbers using the standard algorithm with regrouping (Level 2)
E. Subtract 3-digit numbers using the standard algorithm with regrouping to solve word problems (Level 1)
G. Subtract 3-digit numbers using the standard algorithm with regrouping (Level 4)
H. Subtract 3-digit numbers using the standard algorithm with regrouping to solve word problems (Level 2)