Common Core: 4th Grade Math : Operations & Algebraic Thinking

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #3 : Multiply Or Divide To Solve Word Problems Involving Multiplicative Comparison: Ccss.Math.Content.4.Oa.A.2

It takes Mark  minutes to get dressed in the morning. It takes her older sister, Shelly,  times as long. How long does it take Shelly to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Shelly to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 10.34.16 am

Example Question #312 : Numbers And Operations

It takes Cassie  minutes to get dressed in the morning. It takes her older sister, Linden,  times as long. How long does it take Linden to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Linden to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 10.44.40 am

Example Question #313 : Numbers And Operations

It takes Sam  minutes to get dressed in the morning. It takes her older sister, Kate,  times as long. How long does it take Kate to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Kate to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 10.49.14 am

Example Question #1 : Multiply Or Divide To Solve Word Problems Involving Multiplicative Comparison: Ccss.Math.Content.4.Oa.A.2

It takes Maggie  minutes to get dressed in the morning. It takes her older sister, Alex,  times as long. How long does it take Alex to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Alex to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 10.38.56 am

Example Question #321 : Numbers And Operations

It takes Tim 5 minutes to get dressed in the morning. It takes his older sister, Lisa, 4 times as long. How long does it take Lisa to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Lisa to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 9.18.03 am

Example Question #322 : Numbers And Operations

It takes Molly  to get dressed in the morning. It takes her older sister, Emily,  times as long. How long does it take Emily to get dressed? 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Emily to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 8.59.19 am

Example Question #323 : Numbers And Operations

It takes Nancy  to get dressed in the morning. It takes her older sister, Jessica,  times as long. How long does it take Jessica to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Jessica to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 9.36.02 am

Example Question #324 : Numbers And Operations

It takes David  to get dressed in the morning. It takes her older sister, Melissa,  times as long. How long does it take Melissa to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by 

Let's have  represent how long it takes Melissa to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 10.45.11 am

Example Question #51 : Operations & Algebraic Thinking

It takes Megan  to get dressed in the morning. It takes her older sister, Stephanie,  times as long. How long does it take Stephanie to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by  

Let's have  represent how long it takes Stephanie to get dressed. 

Think:  minutes  times would be how many minutes? 

Screen shot 2015 10 06 at 10.52.44 am

Example Question #52 : Operations & Algebraic Thinking

It takes Tracy  to get dressed in the morning. It takes her older sister, Angie,  times as long. How long does it take Angie to get dressed? 

 

Possible Answers:

Correct answer:

Explanation:

The phrase " times as long" tells you that we are going to multiply by  

Let's have  represent how long it takes Angie to get dressed. 

Think:  minutes  times would be how many minutes? 

 Screen shot 2015 10 06 at 10.56.03 am

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