The total number of wheels is the addition of all of the wheels in the cars.
4+4+4+4+4+4+4
or 4 wheels for each car
That can be simplified into 4 x 7 because 4 is multiplied 7 times.
The total number of wheels is 4 x 7 or 28 wheels in all.
Answer: 28 wheels
Hope this helps :)
