1) Drag “Set wheel_circumference to” under “Set wheel_difference to” (see image 1).

2) Repeat for inside_circum, outside_circum, and ratio (see image 2).

3) Drag multiplication command from under Operators (see image 3) over the white oval (see image 4) in the “set wheel circumference” command.

4) Drag wheel_diameter from under Variables (see image 5) to the first oval (see image 6).

5) Drag pi from under Variables (see image 5) to the second oval (see image 6).

6) Drag subtraction command (see image 7) to an open area in the coding section.

7) Drag circle_radius variable to first oval and wheel_difference to second oval (see image 8)

8) Drag multiplication command (see image 9) to an open area in the coding section.

9) Type the number 2 in the first oval and drag the subtraction command into the second oval (see image 10).

10) Drag another multiplication command to an open area near the first multiplication command. Drag pi variable into the second oval (see image 11)

11) Drag the first multiplication command into the first oval of the second multiplication command and drag the entire command into the oval next to set inside_circum (see image 12).

12) Repeat for outside_circum (see image 13).

13) Create the ratio calculation using a division and a multiplication command (see image 14).

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