Question

The value of $[28\times (-5\left)\right]\times 4$ is

• A. $270$
• B. $-270$
• C. $-560$
• D. $560$

Answer 1

The correct option is C $-560$

$[28\times (-5\left)\right]\times 4=28\times \left[\right(-5)\times 4]$ (associative property)
$=28\times (-20)$
$=-560$.