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Pre-algebra
Free
Course content
452 Lessons
Arithmetic properties
Place value
Place value
Finding place value
Finding place value
Place value tables
Place value tables
Writing a number in standard form
Writing a number in standard form
Writing a number in expanded form
Writing a number in expanded form
Writing numbers in words and standard form
Writing numbers in words and standard form
Comparing place values
Comparing place values
Understanding place value
Understanding place value
Place value when multiplying and dividing by 10
Place value when multiplying and dividing by 10
Regrouping numbers into various place values
Regrouping numbers into various place values
Comparing whole number place values
Comparing whole number place values
Regrouping whole number place values
Regrouping whole number place values
Adding whole numbers by their place values
Adding whole numbers by their place values
Rounding whole numbers
Rounding whole numbers
Rounding to the nearest 10 on the number line
Rounding to the nearest 10 on the number line
Rounding whole numbers to nearest ten
Rounding whole numbers to nearest ten
Rounding to the nearest 100 on the number line
Rounding to the nearest 100 on the number line
Rounding whole numbers to nearest hundred
Rounding whole numbers to nearest hundred
Rounding whole numbers to nearest thousand
Rounding whole numbers to nearest thousand
Regrouping whole numbers
Regrouping whole numbers
Regrouping whole numbers: 675
Regrouping whole numbers: 675
Regrouping whole numbers: 76,830
Regrouping whole numbers: 76,830
Regrouping whole numbers: 430
Regrouping whole numbers: 430
Order of operations
Order of operations
Intro to order of operations
Intro to order of operations
Order of operations example
Order of operations example
Worked example: Order of operations (PEMDAS)
Worked example: Order of operations (PEMDAS)
Order of operations (2-step expressions)
Order of operations (2-step expressions)
Arithmetic properties
Arithmetic properties
Properties of multiplication
Properties of multiplication
Properties and patterns for multiplication
Properties and patterns for multiplication
Commutative law of addition
Commutative law of addition
Commutative law of multiplication
Commutative law of multiplication
Commutative property of multiplication
Commutative property of multiplication
Associative law of addition
Associative law of addition
Associative law of multiplication
Associative law of multiplication
Associative property of multiplication
Associative property of multiplication
Using associative property to simplify multiplication
Using associative property to simplify multiplication
Identity property of 1
Identity property of 1
Identity property of 0
Identity property of 0
Inverse property of addition
Inverse property of addition
Inverse property of multiplication
Inverse property of multiplication
Distributive property over subtraction
Distributive property over subtraction
Distributive property exercise examples
Distributive property exercise examples
Distributive property when multiplying
Distributive property when multiplying
Distributive property
Distributive property
Distributive property over addition
Distributive property over addition
Rational and irrational numbers
Rational and irrational numbers
Intro to rational & irrational numbers
Intro to rational & irrational numbers
Classifying numbers: rational & irrational
Classifying numbers: rational & irrational
Divisibility tests
Divisibility tests
Divisibility tests for 2, 3, 4, 5, 6, 9, 10
Divisibility tests for 2, 3, 4, 5, 6, 9, 10
Recognizing divisibility
Recognizing divisibility
The why of the 3 divisibility rule
The why of the 3 divisibility rule
The why of the 9 divisibility rule
The why of the 9 divisibility rule
Factors and multiples
Factors and multiples
Finding factors of a number
Finding factors of a number
Finding factors and multiples
Finding factors and multiples
Prime numbers
Prime numbers
Prime numbers
Prime numbers
Recognizing prime and composite numbers
Recognizing prime and composite numbers
Prime factorization
Prime factorization
Prime factorization
Prime factorization
Prime factorization exercise
Prime factorization exercise
Common divisibility examples
Common divisibility examples
Least common multiple
Least common multiple
Least common multiple
Least common multiple
Least common multiple: repeating factors
Least common multiple: repeating factors
Least common multiple of three numbers
Least common multiple of three numbers
Greatest common factor
Greatest common factor
Greatest common factor examples
Greatest common factor examples
Greatest common factor explained
Greatest common factor explained
GCF & LCM word problems
GCF & LCM word problems
Reading and interpreting data
Measurement
Volume of a rectangular prism
Negative numbers and coordinate plane
Ratios, rates, proportions
Equations, expressions, and inequalities
Exponents, radicals, and scientific notation
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