Subtract two decimal numbers (to the hundredths place). Model the subtraction problem with disks, including any needed regrouping
A. Add numbers to the hundredths place with regrouping using a disk model
B. Add numbers to the thousandths place with regrouping using a disk model
C. Add numbers to the thousandths place with regrouping using column addition and a disk model
D. Add numbers to the thousandths place with regrouping using column addition
F. Subtract numbers to the thousandths place with regrouping using a disk model
G. Subtract numbers to the thousandths place with regrouping using column subtraction and a disk model
H. Subtract numbers of different lengths to the thousandths place with regrouping using column subtraction and a disk model
I. Subtract numbers to the thousandths place with regrouping using column subtraction