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# Unit: Numbers and operations

Not feeling ready for this? Check out Get ready for 8th grade.

#### 0

Possible mastery points

## Square roots & cube roots

Practice
Square rootsGet 5 of 7 questions to level up!
Cube rootsGet 5 of 7 questions to level up!
Equations with square roots & cube rootsGet 3 of 4 questions to level up!
Roots of decimals & fractionsGet 3 of 4 questions to level up!
Equations with square roots: decimals & fractionsGet 3 of 4 questions to level up!
Square and cube challengeGet 3 of 4 questions to level up!

#### Quiz 1

Level up on the above skills and collect up to 900 Mastery points

## Irrational numbers

Practice
Classify numbers: rational & irrationalGet 5 of 7 questions to level up!
Classify numbersGet 5 of 7 questions to level up!

## Approximating irrational numbers

Practice
Approximating square rootsGet 3 of 4 questions to level up!
Comparing irrational numbersGet 5 of 7 questions to level up!
Comparing irrational numbers with a calculatorGet 5 of 7 questions to level up!

#### Quiz 2

Level up on the above skills and collect up to 500 Mastery points

## Exponents with negative bases

Practice
Exponents with integer basesGet 5 of 7 questions to level up!
Exponents with negative fractional basesGet 3 of 4 questions to level up!
Signs of expressions challengeGet 3 of 4 questions to level up!

## Exponent properties intro

Practice
Multiply powersGet 3 of 4 questions to level up!
Powers of powersGet 3 of 4 questions to level up!
Divide powersGet 3 of 4 questions to level up!
Powers of products & quotientsGet 3 of 4 questions to level up!

## Negative exponents

Practice
Negative exponentsGet 3 of 4 questions to level up!

## Exponent properties (integer exponents)

Practice
Multiply & divide powers (integer exponents)Get 5 of 7 questions to level up!

#### Quiz 3

Level up on the above skills and collect up to 1000 Mastery points

## Working with powers of 10

Practice
Multiplication and division with powers of tenGet 5 of 7 questions to level up!
Approximating with powers of 10Get 3 of 4 questions to level up!

## Scientific notation intro

Practice
Scientific notationGet 5 of 7 questions to level up!

## Scientific notation word problems

#### Quiz 4

Level up on the above skills and collect up to 600 Mastery points
Up next for you:

#### Unit test

Level up on all the skills in this unit and collect up to 3000 Mastery points!