Final answer:
A hundred grid has 100 small squares, and a grid that is 100 by 100 squares has 10,000 small squares. The total number of squares is calculated by multiplying the number of squares in one row by the number of squares in one column.
Step-by-step explanation:
The question is related to understanding the concept of a grid and calculating the number of small squares within it. A hundred grid is typically a grid containing 10 rows and 10 columns, thus making up a total of 100 small squares since 10 x 10 equals 100. When referring to a '10 grid', this is less clear but could imply a grid composed of 10 squares, which can be interpreted as a single row of 10 columns or a single column of 10 rows.
If by '100 grid' we mean a grid that measures 100 squares by 100 squares, then, using the powers of 10, we calculate the total number of small squares by finding 1002 which equals 10,000. The key here is understanding powers of 10 and how they relate to area calculations in a grid.