Call Now to Set Up Tutoring:

(888) 888-0446

Common Core: 2nd Grade Math : Mentally Add and Subtract Within 20: CCSS.Math.Content.2.OA.B.2

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

Create An Account

All Common Core: 2nd Grade Math Resources

7 Diagnostic Tests 217 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #731 : How To Add

$\frac{\begin{array}[b]{r}3\\ +\ 14\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}3\\ +\ 14\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 16$

$\displaystyle 18$

$\displaystyle 19$

$\displaystyle 20$

$\displaystyle 17$

Correct answer:

$\displaystyle 17$

Explanation:

To add we count up. Start at $\displaystyle 3$ and count up $\displaystyle 14$ .

$\displaystyle 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17$

$\frac{\begin{array}[b]{r}3\\ +\ 14\end{array}}{ \ \ \ \space17}$ $\displaystyle \frac{\begin{array}[b]{r}3\\ +\ 14\end{array}}{ \ \ \ \space17}$

Report an Error

Example Question #401 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}4\\ +\ 15\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 15\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 16$

$\displaystyle 18$

$\displaystyle 19$

$\displaystyle 17$

$\displaystyle 20$

Correct answer:

$\displaystyle 19$

Explanation:

To add we count up. Start at $\displaystyle 4$ and count up $\displaystyle 15$ .

$\displaystyle 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19$

$\frac{\begin{array}[b]{r}4\\ +\ 15\end{array}}{ \ \ \ \space19}$ $\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 15\end{array}}{ \ \ \ \space19}$

Report an Error

Example Question #401 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

$\frac{\begin{array}[b]{r}16\\ +\ 1\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}16\\ +\ 1\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 18$

$\displaystyle 16$

$\displaystyle 17$

$\displaystyle 15$

$\displaystyle 19$

Correct answer:

$\displaystyle 17$

Explanation:

To add we count up. Start at $\displaystyle 16$ and count up $\displaystyle 1$ .

16,17 $\displaystyle 16,17$

$\frac{\begin{array}[b]{r}16\\ +\ 1\end{array}}{ \ \ \space17}$ $\displaystyle \frac{\begin{array}[b]{r}16\\ +\ 1\end{array}}{ \ \ \space17}$

Report an Error

Example Question #2051 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}14\\ +\ 2\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}14\\ +\ 2\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 17$

$\displaystyle 20$

$\displaystyle 16$

$\displaystyle 18$

$\displaystyle 19$

Correct answer:

$\displaystyle 16$

Explanation:

To add we count up. Start at $\displaystyle 14$ and count up $\displaystyle 2$ .

$\displaystyle 14,15,16$

$\frac{\begin{array}[b]{r}14\\ +\ 2\end{array}}{ \ \ \space16}$ $\displaystyle \frac{\begin{array}[b]{r}14\\ +\ 2\end{array}}{ \ \ \space16}$

Report an Error

Example Question #736 : How To Add

$\frac{\begin{array}[b]{r}4\\ +\ 3\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 3\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 6$

$\displaystyle 5$

$\displaystyle 8$

$\displaystyle 7$

$\displaystyle 9$

Correct answer:

$\displaystyle 7$

Explanation:

To add we count up. Start at $\displaystyle 4$ and count up $\displaystyle 3$ .

4,5,6,7 $\displaystyle 4,5,6,7$

$\frac{\begin{array}[b]{r}4\\ +\ 3\end{array}}{ \ \ \ \space7}$ $\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 3\end{array}}{ \ \ \ \space7}$

Report an Error

Example Question #1801 : Ssat Elementary Level Quantitative (Math)

$\frac{\begin{array}[b]{r}4\\ +\ 4\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 4\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 8$

$\displaystyle 9$

$\displaystyle 7$

$\displaystyle 6$

$\displaystyle 5$

Correct answer:

$\displaystyle 8$

Explanation:

To add we count up. Start at $\displaystyle 4$ and count up $\displaystyle 4$ .

$\displaystyle 4,5,6,7,8$

$\frac{\begin{array}[b]{r}4\\ +\ 4\end{array}}{ \ \ \ \space8}$ $\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 4\end{array}}{ \ \ \ \space8}$

Report an Error

Example Question #2061 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}16\\ +\ 4\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}16\\ +\ 4\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 18$

$\displaystyle 19$

$\displaystyle 16$

$\displaystyle 17$

$\displaystyle 20$

Correct answer:

$\displaystyle 20$

Explanation:

To add we count up. Start at $\displaystyle 16$ and count up $\displaystyle 4$ .

$\displaystyle 16,17,18,19,20$

$\frac{\begin{array}[b]{r}16\\ +\ 4\end{array}}{ \ \ \space20}$ $\displaystyle \frac{\begin{array}[b]{r}16\\ +\ 4\end{array}}{ \ \ \space20}$

Report an Error

Example Question #2061 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}6\\ +\ 5\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}6\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 13$

$\displaystyle 11$

$\displaystyle 15$

$\displaystyle 14$

$\displaystyle 12$

Correct answer:

$\displaystyle 11$

Explanation:

To add we count up. Start at $\displaystyle 6$ and count up $\displaystyle 5$ .

$\displaystyle 6,7,8,9,10,11$

$\frac{\begin{array}[b]{r}6\\ +\ 5\end{array}}{ \ \ \space11}$ $\displaystyle \frac{\begin{array}[b]{r}6\\ +\ 5\end{array}}{ \ \ \space11}$

Report an Error

Example Question #2063 : Common Core Math: Grade 2

$\frac{\begin{array}[b]{r}9\\ +\ 5\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}9\\ +\ 5\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 15$

$\displaystyle 13$

$\displaystyle 16$

$\displaystyle 14$

$\displaystyle 12$

Correct answer:

$\displaystyle 14$

Explanation:

To add we count up. Start at $\displaystyle 9$ and count up $\displaystyle 5$ .

$\displaystyle 9,10,11,12,13,14$

$\frac{\begin{array}[b]{r}9\\ +\ 5\end{array}}{ \ \ \space14}$ $\displaystyle \frac{\begin{array}[b]{r}9\\ +\ 5\end{array}}{ \ \ \space14}$

Report an Error

Example Question #742 : How To Add

$\frac{\begin{array}[b]{r}13\\ +\ 6\end{array}}{ \ \ \space?}$ $\displaystyle \frac{\begin{array}[b]{r}13\\ +\ 6\end{array}}{ \ \ \space?}$

Possible Answers:

$\displaystyle 18$

$\displaystyle 16$

$\displaystyle 17$

$\displaystyle 19$

$\displaystyle 20$

Correct answer:

$\displaystyle 19$

Explanation:

To add we count up. Start at $\displaystyle 13$ and count up $\displaystyle 6$ .

$\displaystyle 13,14,15,16,17,18,19$

$\frac{\begin{array}[b]{r}13\\ +\ 6\end{array}}{ \ \ \space19}$ $\displaystyle \frac{\begin{array}[b]{r}13\\ +\ 6\end{array}}{ \ \ \space19}$

Report an Error

View Tutors

Joshua
Certified Tutor

University of Cincinnati, Bachelor in Arts, English. Mount Saint Joesph University, Master of Arts, Teaching.

View Tutors

Jamie
Certified Tutor

East Central University, Bachelors, Special Education.

View Tutors

Patrick
Certified Tutor

Florida International University, Bachelors, Psychology. Florida International University, Masters, Psychology.

All Common Core: 2nd Grade Math Resources

7 Diagnostic Tests 217 Practice Tests Question of the Day Flashcards Learn by Concept

Popular Subjects

Spanish Tutors in Boston, Math Tutors in Los Angeles, Reading Tutors in San Diego, Calculus Tutors in Boston, Reading Tutors in Houston, Chemistry Tutors in Denver, LSAT Tutors in Dallas Fort Worth, French Tutors in Boston, GRE Tutors in Phoenix, Math Tutors in San Diego

Popular Courses & Classes

SSAT Courses & Classes in Los Angeles, GMAT Courses & Classes in Phoenix, ACT Courses & Classes in Chicago, ISEE Courses & Classes in Houston, MCAT Courses & Classes in San Francisco-Bay Area, GMAT Courses & Classes in Chicago, GRE Courses & Classes in Chicago, GRE Courses & Classes in San Francisco-Bay Area, LSAT Courses & Classes in Chicago, MCAT Courses & Classes in Houston

Popular Test Prep

LSAT Test Prep in Washington DC, GRE Test Prep in Chicago, ISEE Test Prep in Philadelphia, ISEE Test Prep in San Diego, ACT Test Prep in Atlanta, SAT Test Prep in Denver, MCAT Test Prep in Atlanta, ACT Test Prep in Miami, LSAT Test Prep in Philadelphia, MCAT Test Prep in Boston

DMCA Complaint

If you believe that content available by means of the Website (as defined in our Terms of Service) infringes one or more of your copyrights, please notify us by providing a written notice (“Infringement Notice”) containing the information described below to the designated agent listed below. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors.

Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects.org.

Please be advised that you will be liable for damages (including costs and attorneys’ fees) if you materially misrepresent that a product or activity is infringing your copyrights. Thus, if you are not sure content located on or linked-to by the Website infringes your copyright, you should consider first contacting an attorney.

Please follow these steps to file a notice:

You must include the following:

A physical or electronic signature of the copyright owner or a person authorized to act on their behalf; An identification of the copyright claimed to have been infringed; A description of the nature and exact location of the content that you claim to infringe your copyright, in \ sufficient detail to permit Varsity Tutors to find and positively identify that content; for example we require a link to the specific question (not just the name of the question) that contains the content and a description of which specific portion of the question – an image, a link, the text, etc – your complaint refers to; Your name, address, telephone number and email address; and A statement by you: (a) that you believe in good faith that the use of the content that you claim to infringe your copyright is not authorized by law, or by the copyright owner or such owner’s agent; (b) that all of the information contained in your Infringement Notice is accurate, and (c) under penalty of perjury, that you are either the copyright owner or a person authorized to act on their behalf.

Send your complaint to our designated agent at:

Charles Cohn Varsity Tutors LLC
101 S. Hanley Rd, Suite 300
St. Louis, MO 63105

Or fill out the form below:

Do not fill in this field

Contact Information

* Full legal name

Company name

* Phone number

* Email address

Address

* Address1

Address2

* City

* State

* Zipcode

* Country

Complaint Details

* URL of copyrighted work (where your original material is located)

* Please describe the copyrighted work so that it may be easily identified

I am the owner, or an agent authorized to act on behalf of the owner of an exclusive right that is allegedly infringed.

I have a good faith belief that the use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law.

This notification is accurate.

I acknowledge that there may be adverse legal consequences for making false or bad faith allegations of copyright infringement by using this process.

* Signature (your digital signature is legally binding)

HIGH SCHOOL

GRADUATE SCHOOL

K-8

Search 50+ Tests

math tutoring

science tutoring

foreign languages

elementary tutoring

other

Search 350+ Subjects

Common Core: 2nd Grade Math : Mentally Add and Subtract Within 20: CCSS.Math.Content.2.OA.B.2

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

All Common Core: 2nd Grade Math Resources

Example Questions

Example Question #731 : How To Add

Example Question #401 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #401 : Mentally Add And Subtract Within 20: Ccss.Math.Content.2.Oa.B.2

Example Question #2051 : Common Core Math: Grade 2

Example Question #736 : How To Add

Example Question #1801 : Ssat Elementary Level Quantitative (Math)

Example Question #2061 : Common Core Math: Grade 2

Example Question #2061 : Common Core Math: Grade 2

Example Question #2063 : Common Core Math: Grade 2

Example Question #742 : How To Add

All Common Core: 2nd Grade Math Resources

Report an issue with this question

DMCA Complaint

Contact Information

Address

Complaint Details

Email address:
Your name:
Feedback: