Remind students of often forgotten math principles! This is a necessary reminder for every middle school math class. These 7 math posters are a constant reminder for my math students and I frequently reference the bulletin board throughout the year.

The posters come in black and white so you can print on any color cardstock or paper. I have also included the letters used for the title "INVISIBLE MATH".

Principles covered:

• Every variable has a coefficient of 1 in front
• Every number has an exponent of 1
• Every number with an absent negative sign is positive
• Zero Power rule
• A coefficient and variable have a multiplication sign in between
• Every whole number has a decimal of .0
• Every number has a denominator of 1

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