Word Problems

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What is a word problem?

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A word problem is a mathematical problem that is presented in the form of a narrative or story, requiring the reader to extract relevant information and formulate an equation to find a solution.

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CCSS.HSA.CED.A.1

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How do you identify the unknown in a word problem?

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The unknown is typically represented by a variable (like x) and is the quantity you need to find. Look for phrases that indicate what is being asked.

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CCSS.6.EE.B.6

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What is the first step in solving a word problem?

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The first step is to read the problem carefully and identify the key information, including the known values and what you need to find.

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CCSS.8.EE.C.7B

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What does it mean to write an equation from a word problem?

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Writing an equation involves translating the information from the word problem into a mathematical expression that can be solved.

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CCSS.7.EE.B.4A

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What is the equation for the problem: 'You bought a magazine for $5 and four erasers. You spent a total of $29. How much did each eraser cost?'

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-5 - 4x = -29

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CCSS.HSA.CED.A.3

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How do you solve the equation 4 + 9x = 472?

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Subtract 4 from both sides to get 9x = 468, then divide by 9 to find x = 52.

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CCSS.7.EE.B.4A

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What is the equation for the problem: 'Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?'

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24 - 7x = 10

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CCSS.HSA.CED.A.3

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How do you find the total amount of money before a purchase?

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Add the cost of the item to the amount of money left after the purchase.

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CCSS.1.OA.A.1

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What is the equation for the problem: 'After paying $5.12 for a salad, Norachai has $27.10. How much money did he have before buying the salad?'

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n - $5.12 = $27.10

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CCSS.HSA.CED.A.3

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What does '10 less than one third of my age is 11' mean in equation form?

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(1/3)x - 10 = 11, where x is Jason's age.