Equivalent Expressions using operation properties

Mikey writes the expression

 $5\ +\ 3\cdot\frac{n}{6}$  Which expression is not equivalent to the one Mikey writes? 

•  $5+3\left(n\div6\right)$  

•  $3\left(n\div6\right)+5$  

•  $3\ +\ 5\left(n\div6\right)$  

•  $5+\left(n\div6\right)\cdot3$  

Which expression is equivalent to

 $\left(5\cdot y\right)-3$  ?

•  $y\cdot5-3$  

•  $3\ -\left(5\cdot y\right)$  

•  $\left(\frac{5}{y}\right)-3$  

•  $y^5-3$  

Which expression is equivalent to

 $24\cdot c$  ?

•  $20+4\cdot c$  

•  $\left(c\cdot20\right)\cdot4$  

•  $\left(20\cdot c\right)+\left(4\cdot c\right)$  

•  $\left(20c\right)+4$  

Marcus used the distributive property to simplify this expression

 $8+3\left(x-4\right)$  Which expression is equivalent to what he wrote?

•  $11\left(x-4\right)$  

•  $8+3\cdot x-3\cdot4$  

•  $11\cdot x-11\cdot4$  

•  $8+3\cdot x-4$  

Which expression is equivalent to

 $\left(4+w\right)\div5$  

•  $\left(w+4\right)\div5$  

•  $\left(4\cdot w\right)\div5$  

•  $5\div\left(4+w\right)$  

•  $\left(w+5\right)\div4$  

Which two expressions are equivalent?

• $\left(12\ -\ 4\right)+y$ and $\left(4-12\right)+y$

• $13\ +\ \left(3\cdot y\right)$ and $3\ +\ \left(13\cdot y\right)$

• $22-\left(5\cdot y\right)$ and $22-\left(y\cdot5\right)$

• $6+\left(y\div10\right)$ and $6+\left(10\div y\right)$

Which two expressions are equivalent?

• $4\cdot\left(2\cdot n-3\right)$ and $4\cdot\left(2\cdot n\right)-4\cdot\left(3\right)$

• $3+\left(5\cdot n\right)$ and $\left(3+5\ \right)\cdot\left(3+n\right)$

• $7\cdot10\div n$ and $7\cdot n\div10$

• $9\cdot\left(n+2\right)$ and $9\cdot n\ +\ 2$

Which expression is not equivalent to

 $3\left(9-2w\right)$  

•  $27\ -\ 2w$  

•  $3\cdot9-3\cdot2w$  

•  $27\ -\ 6w$  

•  $9\cdot3\ -2w\cdot3$  

Which two expressions are equivalent?

• $a+\left(7\cdot2\right)$ and $\left(a+7\right)\cdot2$

• $13\cdot a+3$ and $13\cdot\left(a+3\right)$

• $\left(5\cdot3\right)+a$ and $a+3\cdot5$

• $7\left(4+a\right)$ and $7\cdot4+a$

Which of the following are equivalent expressions?

• $k+1$ and $k$

• $0\cdot k$ and $k$

• $0+k$ and $k$

• $k\cdot1$ and $k+1$