How many units will the product 83 × 72 increase if each of the factors is increased by 3 units?

In order to determine how much the initial product of two numbers 83 * 72 will increase, we will make this increase in each of the factors by 3 units. Let’s write a new enlarged work.

(83 + 3) * (72 + 3) = (83 * 72) + (3 * 72 + 3 * 83 + 3 * 3) =

(83 * 72) + 3 * (72 + 83 + 3) = (83 * 72) + 3 * (158) = (83 * 72) + 474.

Even without calculating the original product 83 * 72, we see that with an increase in each of the numbers by 3, the result of the multiplication increased by 474.

Answer: increased by 474.