Writing Numerical Expressions

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What is a numerical expression?

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A numerical expression is a mathematical phrase that includes numbers and operations (like addition, subtraction, multiplication, and division) but does not have an equal sign.

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CCSS.6.EE.A.1

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What does the word 'sum' indicate in a numerical expression?

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The word 'sum' indicates that you should add the numbers together.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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What does the word 'difference' indicate in a numerical expression?

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The word 'difference' indicates that you should subtract one number from another.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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What does the word 'product' indicate in a numerical expression?

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The word 'product' indicates that you should multiply the numbers together.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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What does the word 'quotient' indicate in a numerical expression?

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The word 'quotient' indicates that you should divide one number by another.

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CCSS.3.OA.A.2

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How would you express '4 times the sum of 34 and 8' in numerical form?

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4 × (34 + 8) or 4 × 42.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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How would you express '20 times the sum of 4 and 2' in numerical form?

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20 × (4 + 2) or 20 × 6.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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What is the first step in solving 'Subtract 214 from 721 then divide by 5'?

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First, subtract 214 from 721.

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CCSS.4.OA.A.3

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What is the final expression for 'Subtract 214 from 721 then divide by 5'?

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(721 - 214) ÷ 5.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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If you see '3 times the sum of 5 and 2', how would you write it?

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3 × (5 + 2) or 3 × 7.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2