Unit 2 · 5 lessons
Rational Numbers and Proportional Reasoning
Integers and fractions with signs, reading imperial measurements, the four operations with positive and negative fractions, and the ratios, rates, proportions and percentages behind prices, maps and taxes.
- 52 practice questions
- 39 flashcards
Lessons
- 1Integers: Location, Direction and ChangeUse positive and negative numbers to describe where something is, which way it moved and by how much it changed, and see how a negative sign behaves inside fractions, ratios, rates and decimals.10 questions
- 2Fractions, Unit Fractions and MeasuringBuild every fraction from unit fractions, find equivalent fractions, and read the fractions that real tools use: an imperial ruler marked in sixteenths of an inch and a set of measuring cups.10 questions
- 3Operations with Positive and Negative FractionsAdd, subtract, multiply and divide fractions and mixed numbers that can be positive or negative, and use them inside formulas and real measurements.11 questions
- 4Ratios, Rates and ProportionsCompare quantities with ratios and rates, use unit prices to find the best buy, and solve proportions for recipes, maps and scale drawings, including why cross-multiplying works.10 questions
- 5Percentages: Increase, Decrease, Taxes and DiscountsFind a percent of an amount, measure percent change, apply discounts and 13% HST with multipliers, see why successive changes do not simply add, and work backwards to an original price.11 questions