ARITHMETICS 1C

Evaluate 16 x 362 + 638 x 16.

Solution

= 16 x 362 + 638 x 16

= 16 x (362 + 638)     factoring out the common number

= 16 x 1000   

= 16000      [after multiplying 16 by 1 and adding three zeros on the answer]

Hence 16 x 362 + 638 x 16 = 16000

TRY THIS………….

Evaluate 141 x 518 + 482 x 141.