Intro to Expressions & Equations

What are the 4 operations of mathematics?

• addition, subtraction, exponents, rounding.

• addition, subtractions, estimation, division.

• addition, subtraction, place value, fractions.

• addition, subtraction, multiplication, division.

What is the most popular letter variable?

• p

• w

• x

• m

A _______ is used as a place holder for an unknown number.

• variable

• fraction bar

• denominators

• brackets

1+2 = x is an example of what of?

• A question

• An Algebraic equation

   

• An Algebraic solution

True of False: It is ok for x to stand for different numbers in different problems?

• True

• False

Let's Practice with using what we know from the video. What would x stand for in the following equation.:     x+x=8

• 3

• 5

• 4

Which word do we use in algebra to describe values that can change or vary in the same problem? 

• Equation

• Variable

• Solution

What do we use to represent variable in algebra?

• letters

• numbers

What are the 4 basic arthimatic operations? 

• Add

  subtract

  Multiply

  Divide

• equation

  fraction

  expression

  variable

If you see the equation of 2x, what does that mean you have to do with the 2 and the x?

• Multiply them

• Add them

• Subtract them

• Divide them