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Math · 8th Grade
Square and Cube Roots
The numbers worth knowing by sight, and how to simplify the rest.
How to use it
Memorise the perfect squares to 15². It saves time in every later topic.
Free · print-ready PDF · US Letter and A4
- Grade
- 8th Grade
- Ages
- 13–14
- Subject
- Math
- Pages
- 1
The rest of the 8th Grade wall
49 more posters, all free to print — 11 of them here.
The Product RuleSame base, multiplying? Add the exponents.The Quotient RuleSame base, dividing? Subtract the exponents.The Power of a Power RuleA power raised to a power? Multiply the exponents.Zero and Negative ExponentsWhy anything to the power zero is one, and where a negative exponent really lives.Scientific NotationVery big and very small numbers, written so you can actually compare them.SlopeRise over run, and the four kinds of slope a line can have.Slope-Intercept Formy = mx + b — the form you can graph without doing any working.Three Forms of a LineSame line, three ways of writing it — and what each is good for.Systems of EquationsTwo lines, three methods, and what it means when there is no answer.What Makes a FunctionOne input, one output — and the two tests that check it.Linear FunctionsSlope, intercepts, the three forms of a line, and what each one is good for.