If you're seeing this message, it means we're having trouble loading external resources on our website.

Ако си зад уеб филтър, моля, увери се, че домейните *. kastatic.org и *. kasandbox.org са разрешени.

Основно съдържание

STANDARDS

 > 

US-GA

Math

Georgia Math

Grade 8: Numerical Reasoning – Rational and Irrational Numbers, Decimal Expansion, Integer Exponents, Square and Cube Roots, Scientific Notation

8.NR.1

Solve problems involving irrational numbers and rational approximations of irrational numbers to explain realistic applications.

8.NR.1.1

Mostly covered
Distinguish between rational and irrational numbers using decimal expansion. Convert a decimal expansion which repeats eventually into a rational number.

8.NR.1.2

Mostly covered
Approximate irrational numbers to compare the size of irrational numbers, locate them approximately on a number line, and estimate the value of expressions.

8.NR.2

Solve problems involving radicals and integer exponents including relevant application situations; apply place value understanding with scientific notation and use scientific notation to explain real phenomena.

8.NR.2.1

Fully covered
Apply the properties of integer exponents to generate equivalent numerical expressions.

8.NR.2.2

Mostly covered
Use square root and cube root symbols to represent solutions to equations. Recognize that x^2 = p (where p is a positive rational number and |x| ≤ 25) has two solutions and x^3 = p (where p is a negative or positive rational number and |x| ≤ 10) has one solution. Evaluate square roots of perfect squares ≤ 625 and cube roots of perfect cubes ≥ -1000 and ≤ 1000.

8.NR.2.3

Fully covered
Use numbers expressed in scientific notation to estimate very large or very small quantities, and to express how many times as much one is than the other.

8.NR.2.4

Fully covered
Add, subtract, multiply and divide numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Interpret scientific notation that has been generated by technology (e.g., calculators or online technology tools).