$\frac{2x}{5}\ =\ 10$  

 $-8\ +\frac{x}{5}=\ 2$  

 $5x-4=\ 16$ 

 $8x+8=\ 88$ 

Is $5x+4\ =20$ an expression or an equation?

 $5\times4=\ldots+10$ 
What is the missing number to make this a True Equation

 $3^2+2\ =10$  

 $\frac{18}{3}\ne4+2$  

If  $x=7$  

What is the inverse operation of 

 $+$   

What is the inverse operation of 

 $-$  

What is the inverse operation of 

 $\times$  

What is the inverse operation of 

 $\div$  

 $\frac{x}{5}=2$  

A number divided by four is equal to five. The number is:

The sum of a number and three is multiplied by two. This gives a result of ten.

Write this as a mathematical equation