Simplifying Algebra Revision

Simplify $2x\times3y$  

Simplify $12mn\div3m$  

 $x\times4y\times-5z$  

Which of the following could give an answer of $12ab^2c$  

•  $3a\times4b\times c$  

•  $2ab\times2b\times3c$  

•  $a\times6b\times3bc$  

•  $4ac\times2b\times3c$  

 $\frac{8pq}{2q}$  

 $-12def\div3df$  

Write down the simplest expression for the perimeter of this shape

Expand      $3\left(2a+5\right)$  

Expand      $-2\left(4a+3\right)$  

Expand      $4\left(3-2x\right)$