\( f ) - 3 \cdot \square \cdot 6 = 630 \)

To solve for the missing number in the equation \( f - 3 \cdot \square \cdot 6 = 630 \), we need to isolate the square. First, let's rearrange the equation: \( f = 630 + 3 \cdot \square \cdot 6 \). Next, if we want to figure out what value could go in that square shape, we can factor out the numbers to simplify: \( 3 \cdot \square \cdot 6 = 18 \cdot \square \). So you could rewrite the equation as \( f = 630 + 18 \cdot \square \). From here, you can substitute different values for \( \square \) and see how they affect \( f \)! For example, if \( \square \) is 12, we get \( 18 \cdot 12 = 216 \), leading to \( f = 630 + 216 = 846 \). So now we have a neat way to play around with different values! It's like a puzzle where the pieces fall into place depending on your choice.