Question

Which is longer, 4 cm or 4.0 cm? Explain.​

Answer 1

Answer: They are the same.

Explanation:

4 and 4.0 is the same thing. You can disregard the zero because it is just a placeholder and has no value.

Same thing goes for 5.0, 6.0, 4.000, 5.000, 6.000, etc. Make sure it is not confused with a comma, however.

Hope this helps!