Add a touch of 90's magic to your secondary math classroom with these Invisible (Hidden) Math Posters - the perfect decor kit for your bulletin board display to help students navigate the unwritten and invisible rules of math. Decor with a purpose for your secondary (middle and high school) math classroom!

Everything you need is in this kit!

In this kit, you will get the following posters to print on regular 8.5 x 11 paper, which can be laminated and hung on the wall or a bulletin board display.

• "Invisible Math" and "Hidden Math" bunting banners in color or B&W
• "Invisible Math" and "Hidden Math" title letter blocks in color or B&W
• 24 invisible math rule posters in both color and B&W (see list of rules below)
• EDITABLE power-point file to create your own math rule posters (includes both colors & black and white templates)
• Together you'll be getting 223 total pieces to create the Invisible Math display of your 90's dreams!

24 Math Rules Included:

• Every whole number had a denominator of 1
• Any nonzero number raised to the power of zero equals 1
• There is a decimal point at the end of every whole number
• Every variable has a coefficient of 1 to its left
• There is a positive sign to the left of every number
• There is a multiplication sign between every coefficient and variable
• A negative sign to the left of a variable is the same as negative 1 times the variable
• Every number has an exponent of one
• A negative sign to the left of a number in parenthesis is the same as multiplying by -1
• Two minus (or negative) signs is the same as a positive sign
• Adding a negative number is the same as subtracting that number
• Every radical (square root) has an index of 2
• The square root of a negative number is a non-real (imaginary) number
• A negative sign in font of parenthesis must be distributed
• One over a variable is the same as the variable to the power of -1
• A negative sign to the left of an absolute value symbol is the same as -1 times the absolute value
• A fraction with the same number in the numerator and denominator equals 1
• You cannot divide by zero
• A whole number has a denominator of 1 when multiplying by a fraction
• Percents are always out of 100, so move the decimal twice to the left when writing the decimal form
• Distributive property - multiply the number outside the parenthesis by each term inside the parenthesis
• A whole number divided by a fraction is the same as multiplying by its reciprocal
• Multiplication signs
• Division signs

Need something else? Just contact me (with a question or via email)

• morgan@thesquadraticformula.com

Mix and match these Y2K Pi Pop posters with your existing décor or grab multiple elements from the kit to transform your classroom and create a warm, inviting environment where students can thrive.

Your classroom will have that touch of 90's Y2K era charm and be sure to catch the eyes and interest of your students, peers and admin!

Grab the 90's Era Math Vocab Poster Bundle!

• Save 10%
• Get a BONUS Editable file to create your own!

More Math Classroom Decor Fresh Outta The 90's

⭐ 90's Era Math Classroom Decor - Vocab Poster Kit Bundle - Middle / High School

⭐ 90's Y2K Retro Daily Flip Calendar Kit (Magnetic Curtain Rod) - Classroom Decor

⭐ PEMDAS Poster Anchor Charts for Order of Operations - 90's Math Classroom Decor

⭐ Horizontal & Vertical Anchor Posters - 90's Era Secondary Math Classroom Decor

Like the Idea, but want a different décor theme?

⭐ Retro Harmony Math Classroom Decor Bundle

⭐ Tropical Glam [Deco Tropic] Math Classroom Decor Bundle

⭐ 90's Y2K Pi Pop Math Classroom Decor Bundle