1.
Take any number, subtract from it the sum of its digits, the result will always
be divisible by:
a)
5
b) 7
c) 9
d)
11
2.
When the race ended, there were 4 cars in front of a car, 4 cars behind a car, and
a car in the middle? How many cars finished the race?
a)
9
b) 5
c)
10
d)
11
