Common Core: 2nd Grade Math : Common Core Math: Grade 2

Study concepts, example questions & explanations for Common Core: 2nd Grade Math

varsity tutors app store varsity tutors android store

Example Questions

Example Question #455 : Operations & Algebraic Thinking

Is there an even or an odd number of dots below? 

Screen shot 2015 12 01 at 10.42.14 am

Possible Answers:

Odd

Both

Neither

Even

Correct answer:

Odd

Explanation:

When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items. 

In this case, we have one dot so it's can't be in a pair, so we have an odd number of dots. 

Example Question #456 : Operations & Algebraic Thinking

Is there an even or an odd number of dots below? 

Screen shot 2015 12 01 at 10.44.05 am

Possible Answers:

Odd

Neither

Even

Both

Correct answer:

Even

Explanation:

When trying to decide if we have an even or an odd number of items, we can put the items in pairs of two. If each item is in a pair, then we have an even number of items. If there is one item that isn't in a pair, then we have an odd number of items. 

In this case, our dots are in pairs of two, so we have an even number of dots. 

Example Question #1 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array? 

Screen shot 2015 07 20 at 12.14.50 pm

Possible Answers:

Correct answer:

Explanation:

 When we count the number of squares in this picture we get . We have  rows with  squares in each row. Our math equation for this set could be written as

Example Question #457 : Operations & Algebraic Thinking

What is the equation that shows the sum of the squares represented by this rectangular array?


Screen shot 2015 07 20 at 12.33.14 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares in this picture we get . We have  rows with  squares in each row. Our math equation for this set could be written as 

Example Question #101 : How To Add

What is the equation that shows the sum of the squares represented by this rectangular array?


Screen shot 2015 07 20 at 12.43.39 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares in this picture we get . We have  rows with  squares in each row. Our math equation for this picture could be written as  

Example Question #458 : Operations & Algebraic Thinking

What is the equation that shows the sum of the squares represented by this rectangular array?


Screen shot 2015 07 20 at 12.53.02 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares in this picture we get . We have  rows with  squares in each row. Our math equation for this picture could be written as  

Example Question #5 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?


Screen shot 2015 07 20 at 1.04.51 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares in this picture we get . We have  rows with  squares in each row. Our math equation for this picture could be written as 

Example Question #102 : How To Add

What is the equation that shows the sum of the squares represented by this rectangular array?


Screen shot 2015 07 20 at 1.14.34 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares in each box we get . We have  rows with  squares in each row. Our math equation for this picture could be written as  

Example Question #7 : Use Addition To Determine Number Of Objects In A Rectangular Array: Ccss.Math.Content.2.Oa.C.4

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 2.11.33 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares in this picture we get . We have  rows with  squares in each row. Our math equation for this picture could be written as 

Example Question #461 : Operations & Algebraic Thinking

What is the equation that shows the sum of the squares represented by this rectangular array?

Screen shot 2015 07 20 at 3.07.03 pm

Possible Answers:

Correct answer:

Explanation:

When we count the number of squares within the box we get . We have  rows with  squares in each row. Our math equation for this picture could be written as 

Learning Tools by Varsity Tutors