Equivalent expressions with distribution and combining like terms

The topic  is a topic under the 6th Grade Math Mission. This exercise introduces the idea of manipulating expressions to make other equivalent expressions.

Types of Problems
There are two types of problems in this exercise:


 * 1) Select equivalent formulations: This problem provides an algebraic expression and several other statements that might be equivalent. The student is expected to select all the equivalent expressions from a multiple select list.Efoe1-1.png
 * 2) Fill in to make equivalent: This problem provides an algebraic expression and a fill-in-the-blank form of the expression immediately afterward. The student is asked to fill in the blanks to make the statement equivalent to the original.Efoe1-2.png

Strategies
This exercise is easy to get accuracy badges with knowledge of the distributive properties and collection of like terms. The speed badges are also easy because the numbers are less than 100 in most cases and can be manipulated mentally.
 * 1) Recommended to collect like terms in all the possible answers and select the ones that end up being the same after this process.