Question

Find the following products, using distributive laws:
$$439 \times 997$$

Answer 1

Using distributive law of multiplication over addition

We get

$$439 \times 997 = 439 \times (1000 - 3)$$

$$ = 439 \times 1000 - 439 \times 3$$

$$= 439000 - 1317$$

$$= 437683$$