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Math · 7th Grade
Rational Number Rules
Sign rules applied to fractions and decimals, plus conversion between forms.
How to use it
Convert to one form first, then apply the sign rule.
Free · print-ready PDF · US Letter and A4
- Grade
- 7th Grade
- Ages
- 12–13
- Subject
- Math
- Pages
- 1
The rest of the 7th Grade wall
49 more posters, all free to print — 11 of them here.
Solving ProportionsTwo equal ratios, and the cross-multiplication that solves them.Constant of ProportionalityThe single number that turns one quantity into the other, every time.Percent Increase and DecreaseChange over original — and why the original is always the bottom.Tax, Tip and DiscountThree names for the same multiplication.Operations with Rational NumbersNegative fractions and decimals — convert to one form, then apply the sign rule.Two-Step EquationsUndo in reverse order: plus and minus first, then times and divide.Variables on Both SidesCollect the letters on one side and the numbers on the other.Circumference of a CircleThe distance around, and the two formulas that are the same formula.Area of a CircleSquare the radius, never the diameter.Angle PairsFive relationships that let you find a missing angle without measuring.ProbabilityA number between 0 and 1 — and what it does and does not promise.