Suppose some of the boxes in a decimal wheel show these numbers 0.62 0.63 0.67 and 0.69 explain how to use structure to find the number that is written in the circle at the center of the decimal wheel quick

All the decimal numbers are beginning with 6 .

So just draw a circle .Write 6 in middle of the circle.

Then draw ten lines which starts from .60 and ends in .69.

you must draw lines in such a way that if you join all thes points it will also comlete  a circle.

A picture is shown below.

This will complete the whole circle.

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