Let's analyze the sum:
0.52 + 0.61 = 1.13
Now, let's evaluate the options:
A. The sum is less than 1 because both decimals are less than 1.
- This is incorrect. While both decimals are less than 1, their sum is greater than 1.
B. The sum is less than one because the sum does not completely shade one hundredths grid.
- This doesn't provide a clear explanation of the situation.
C. The sum is greater than one because the sum shades more than one hundredths grid.
- This is correct. The sum of 1.13 indicates that it exceeds 1.
D. The sum is greater than one because any two hundredths decimals added together is greater than 1.
- This is misleading. While 0.52 and 0.61 sum to greater than 1, it is not true that any two decimals less than 1 will necessarily sum to greater than 1.
The most accurate explanation is C: "The sum is greater than one because the sum shades more than one hundredths grid."