SME
Grade 8 Math
The Number System
Square roots, cube roots and irrational numbers
Main lesson
Cube roots as edges
Use this for “A cube has volume 1,000 cm³. What is its edge?”
A repeating decimal as a fraction
Use this for “Write 0.363636… as a fraction.”
Rational or irrational?
Use this for “Which of these numbers are irrational: −11/4, 0.2468, √41, −√81?”
Does the decimal end or repeat?
Use this for “Which fractions have decimals that end: 3/8, 1/3, 7/20?”