Find Using Distributive Property (A) 728 × 101 (B) 5437 × 1001 (C) 824 × 25 (D) 4275 × 125 (E) 504 × 35

Answer: In A. The answer will be

Write 101 as (100+1)

So, 

= 728 x (100+1)

= 728 x 100 + 728 x 1

= 72800 + 728

= 73528

Write 1001 as (1000+1)

So, 

= 5437 x (1000+1)

= 5437 x 1000 + 5437 x 1

= 5437000 + 5437

= 5442437.

Write 25 as (20+5)

So, 

= 824 x (20+5)

= 824 x 20 + 824 x 5

= 824 x 2 x 10 + 824 x 5

= 16480 + 4120

= 20600.

Write 125 as (100+25)

So, 

= 4275 x (100+25)

= 4275 x 100 + 4274 x 25

= 427500 + 106875

= 534375.