Question

Question 41

Fill in the blanks to make the statement true.

$(-23)\times \left(42\right)=(-42)\times$

Answer 1

$(-23)\times \left(42\right)=(-1)\times \left(23\right)\times \left(42\right)=(-1)\times \left(42\right)\times \left(23\right)$
$[\because$ multiplication is commutative, i.e. $a\times b=b\times a]$
$=(-42)\times \left(23\right)$