Complete the following arithmetic problems, demonstrating properties of addition and subtraction, and solving a word problem.

The equation is $11 + 8 = 8 + \underline{\hspace{1cm}}$.
This demonstrates the commutative property of addition ($a+b = b+a$).

The equation is $C8 + 7C = 1 + \underline{\hspace{1cm}}$.
Assuming 'C' is a typographical error and the numbers are intended to be 8 and 7, similar to the simple arithmetic context of the other problems.

To find the missing number, subtract 1 from 15:

The equation is $4 - 6 = \underline{\hspace{1cm}}$.

The problem states: "James has 13 apples and Kate has 7 apples less than James. How many apples does Kate have?"
The number sentence is $13 - 7$.

i)

ii)

This is correct.

The statement is $C + 6 - 3 = 8 + 0$.
Simplify both sides of the equation:
Left side: $C + 6 - 3 = C + 3$.
Right side: $8 + 0 = 8$.
The statement becomes $C + 3 = 8$.
This is an equation, not a statement that is universally true or false without a defined value for 'C'. If 'C' is a variable, the statement is only true if $C=5$. Since no value for 'C' is given, the statement is not always true. Therefore, as a general statement