Playing with Nu...

Find the number that should be added to $$98137432$$ to make it exactly divisible by $$10$$?

What is the number should be added to $$65328$$ to make it exactly divisible by $$10$$?

How many numbers are divisible by $$10$$?
$$290, 397, 375, 100, 1970, 280, 350, 409, 710$$

Which number is divisible by $$3$$?

What is the number that should be added to $$27549$$ to make it exactly divisible by $$3$$?

How many numbers are divisible by $$10$$?
$$210, 457, 455, 650, 1000, 3982, 290, 101, 370$$

Which of the following number should be added to $$75329$$ to make it exactly divisible by $$10$$?

What is the value of $$B$$?
  $$ 2  \ B$$
  x   $$6$$
______
$$1  B \  0$$

Find the value of $$A$$:
  $$2 \  A$$
 x $$ A$$
_______
$$15 A$$

What is the largest $$3$$ digit number exactly divisible by $$3$$?