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Arithmetic operations

Learn
Adding decimals: 9.087+15.31Adding decimals: 0.822+5.65Adding three decimals
Practice
Adding decimals: thousandthsGet 5 of 7 questions to level up!
Learn
Subtracting decimals: 9.005 - 3.6Subtracting decimals: 39.1 - 0.794
Practice
Subtracting decimals: thousandthsGet 5 of 7 questions to level up!
Learn
Adding decimals word problemAdding & subtracting decimals word problem
Practice
Learn
Intro to multiplying decimalsMultiplying decimals: place valueMultiplying challenging decimals
Learn
Dividing by 2-digits: 9815÷65Dividing by 2-digits: 7182÷42
Practice
Division by 2-digitsGet 3 of 4 questions to level up!
Multi-digit divisionGet 3 of 4 questions to level up!
Learn
Dividing whole numbers to get a decimalDividing a decimal by a whole numberDividing a whole number by a decimalDividing decimals with hundredthsDividing decimals completelyLong division with decimalsDividing by a multi-digit decimal
Practice
Dividing decimals: hundredthsGet 3 of 4 questions to level up!
Dividing decimals: thousandthsGet 3 of 4 questions to level up!
Learn
Understanding division of fractionsDividing a fraction by a whole numberDividing a whole number by a fractionDividing fractions: 2/5 ÷ 7/3Dividing fractions: 3/5 ÷ 1/2Dividing mixed numbersDividing whole numbers & fractions: t-shirtsDividing fractions review
Practice
Divide fractions by whole numbersGet 3 of 4 questions to level up!
Divide whole numbers by fractionsGet 3 of 4 questions to level up!
Dividing fractionsGet 5 of 7 questions to level up!
Divide mixed numbersGet 3 of 4 questions to level up!
Dividing fractions word problemsGet 5 of 7 questions to level up!
Learn
Intro to exponentsSquaring numbersIntro to exponentsThe zeroth powerComparing exponent expressionsExponents of decimalsPowers of fractionsExponents review
Practice
Exponents (basic)Get 5 of 7 questions to level up!
ExponentsGet 5 of 7 questions to level up!
Powers of fractionsGet 5 of 7 questions to level up!
Learn
Intro to order of operationsOrder of operations examples: exponentsOrder of operations exampleWorked example: Order of operations (PEMDAS)Order of operations exampleOrder of operations review
Practice
Order of operations (no exponents)Get 3 of 4 questions to level up!
Order of operationsGet 5 of 7 questions to level up!
Order of operations challengeGet 5 of 7 questions to level up!

About this unit

The most fundamental branch of math is arithmetic operations. It consists of adding, subtracting, multiplying, and dividing numbers. We're willing to bet that doing these operations on whole numbers is a piece of cake, but now we'll mix those numbers up with decimals and fractions. We'll also introduce the idea exponents as they become much more important moving forward. So sharpen that pencil and relax in your chair, we're going for a ride!