Students solve equations by adding or subtracting 0 from a number. They discover that the original amount is unchanged in these types of equations
A. Solve addition equations by adding 1
B. Solve subtraction equations by subtracting 1
C. Review that 0 represents no objects
D. Add 0 to a number
E. Subtract 0 from a number
G. Add sets of concrete objects to complete a ten-frame
H. Identify the amount of concrete objects needed to make 10
I. Identify amounts that make 10 when added together
J. Identify pairs of numbers that make 10
K. Identify the missing addend to make 10