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Write and interpret numerical expressions.
Write and interpret numerical expressions.
NC.5.OA.2 Write, explain, and evaluate numerical expressions involving the four operations to solve up to two-step problems. Include expressions involving:
NC.5.OA.2 Write, explain, and evaluate numerical expressions involving the four operations to solve up to two-step problems. Include expressions involving:
• Parentheses, using the order of operations.
• Parentheses, using the order of operations.
• Commutative, associative and distributive properties.
• Commutative, associative and distributive properties.
Vocab:
Vocab:
Parentheses: symbols that keep an idea or numbers together ( )
Numerical expressions: a way of writing numbers and operations without an equal sign (For example: 9 + 6 - 2)
PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction (the order of operations)
Addition: to put numbers together and get a sum
Subtraction: to take away an amount from another number to get a difference
Multiplication: to multiply two numbers and get a product
Division: to see how many times a small number goes into a bigger number
Product: the answer to a multiplication problem
Quotient: the answer to a division problem
Addend: one of the numbers being added in a problem
Helpful Sites:
Helpful Sites:
http://www.math-aids.com/Order_of_Operations/
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