Common Core: 3rd Grade Math : Operations & Algebraic Thinking

Study concepts, example questions & explanations for Common Core: 3rd Grade Math

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Example Questions

Example Question #12 : Solve Two Step Word Problems Using The Four Operations: Ccss.Math.Content.3.Oa.D.8

There were  families of meerkats that lived in the same burrows. Each family had  meerkats.  meerkats went out to find food, how many are left in the burrows?

Possible Answers:

Correct answer:

Explanation:

To solve this problem, we first have to find our unknowns. Our unknowns are how many meerkats there are total (T) and how many meerkats are left in the burrow (L).

 because there are  families of meerkats and each of them has  members of the family. Each is a keyword for multiplication so that gives us a hint.

 because there are  meerkats total in the burrows and  meerkats are subtracted because they left the burrow.

There are  meerkats left in the burrows.

Example Question #13 : Solve Two Step Word Problems Using The Four Operations: Ccss.Math.Content.3.Oa.D.8

Patrick got  baseball trading cards for his birthday from his best friend. The next day he received  more cards from his uncle. He decided to share them equally between himself and his two brothers. How many cards will each child receive?

Possible Answers:

Correct answer:

Explanation:

To solve this problem, we first have to find our unknowns. Our unknowns are how many baseball cards Patrick received in total (T) and how many cards each child will receive (C).

 because he received  cards from his friend and then another  from his uncle. The cards would be added together to find the total.

÷ because there are  cards total and they are being shared equally among Patrick AND his two brothers so there are  children total. "Shared equally" is a keyword for division.

Each child will receive  cards in total.

Example Question #14 : Solve Two Step Word Problems Using The Four Operations: Ccss.Math.Content.3.Oa.D.8

In Denver, it snowed 5 inches on Monday, 6 inches on Tuesday, 3 inches on Thursday, and 1 inch on Friday. On Saturday, it snowed three times as much as the rest of the week. How much did it snow on Saturday?

Possible Answers:

 inches

 inches

 inches

 inches

Correct answer:

 inches

Explanation:

To solve this problem, we first have to find our unknowns. Our unknowns are how much did it snow during the weekdays (W) and how much did it snow on Saturday (S).

 because we need to know how much it snowed during the weekdays in total. We must add together the amount of snow from Monday, Tuesday, Thursday, and Friday.

 because it snowed  times as much on Saturday as it did the rest of the week. The total snow from the weekdays will be multiplied by  to find out how much it snowed on Saturday.

On Saturday it snowed a total of  inches.

Example Question #1 : Identify Arithmetic Patterns: Ccss.Math.Content.3.Oa.D.9

What is the pattern for the numbers in the X column to the numbers in the Y column? 


Screen shot 2015 09 23 at 10.33.26 am

Possible Answers:

Add 

Subtract 

Add 

Multiply 

Subtract 

Correct answer:

Add 

Explanation:

 is added to each X value to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

Example Question #781 : Operations & Algebraic Thinking

What is the pattern for the numbers in the X column to the numbers in the Y column? 

Screen shot 2015 09 23 at 10.33.31 am

Possible Answers:

Multiply 

Multiply 

Add 

Add 

Add 

Correct answer:

Add 

Explanation:

 is added to each X value to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

Example Question #2213 : Operations

What is the pattern for the numbers in the X column to the numbers in the Y column? 

Screen shot 2015 09 23 at 10.33.36 am

Possible Answers:

Divide 

Multiply 

Divide 

Add 

Add 

Correct answer:

Add 

Explanation:

 is added to each X value to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

Example Question #3 : Identify Arithmetic Patterns: Ccss.Math.Content.3.Oa.D.9

What is the pattern for the numbers in the X column to the numbers in the Y column? 

Screen shot 2015 09 23 at 10.33.46 am

Possible Answers:

Add 

Multiply 

Add 

Multiply 

Add 

Correct answer:

Add 

Explanation:

 is added to each X value to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

Example Question #2213 : Operations

What is the pattern for the numbers in the X column to the numbers in the Y column? 

Screen shot 2015 09 23 at 10.33.50 am

Possible Answers:

Add 

Add 

Add 

Divide 

Multiply 

Correct answer:

Add 

Explanation:

 is added to each X value to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

Example Question #3 : Identify Arithmetic Patterns: Ccss.Math.Content.3.Oa.D.9

What is the pattern for the numbers in the X column to the numbers in the Y column? 


Screen shot 2015 09 23 at 11.03.32 am

Possible Answers:

Subtract 

Add 

Multiply 

Add 

Add 

Correct answer:

Add 

Explanation:

 is added to each X value to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

Example Question #4 : Identify Arithmetic Patterns: Ccss.Math.Content.3.Oa.D.9

What is the pattern for the numbers in the X column to the numbers in the Y column? 

Screen shot 2015 09 23 at 10.32.19 am

Possible Answers:

Add 

Subtract 

Multiply 

Add 

Multiply 

Correct answer:

Multiply 

Explanation:

Each X value is multiplied by  to get the Y value. 

To find the rule, you may have to do some trial and error. The most important thing to remember is, once you think you have the rule, make sure to test the rule with all of the X values. 

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