Naioms fish is 40 millimeters long. Her guinea pig is 25 centimeters long. How much longer is her guinea pig than her fish?

See a solution process below:

Explanation:

First, lets convert the length of Naomi's guinea pig from cm to mm.

1cm=10mm

We can multiply each side of the equation by 25 to obtain the length of the guinea pig in mm.

25×1cm=25×10mm

25cm=250mm

Because we have a length of the guinea pig and the fish in a common metric we can subtract the two values:

250mm−40mm=210mm

The guinea pig is 210 millimeters longer than the fish.

Or, if we want to convert this to centimeters we can divide by 10:

210 millimeters10=21 centimeters

Step-by-step explanation:

Hope this helps :)

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