SSAT Elementary Level Math : How to add

Study concepts, example questions & explanations for SSAT Elementary Level Math

varsity tutors app store varsity tutors android store

Example Questions

Example Question #343 : Adding And Subtracting Within 20

\(\displaystyle \frac{\begin{array}[b]{r}7\\ +\ 4\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 14\)

\(\displaystyle 13\)

\(\displaystyle 15\)

\(\displaystyle 11\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 11\)

Explanation:

To add we count up. Start at \(\displaystyle 7\) and count up \(\displaystyle 4\).

\(\displaystyle 7,8,9,10,11\)

\(\displaystyle \frac{\begin{array}[b]{r}7\\ +\ 4\end{array}}{ \ \ \ \space11}\)

Example Question #1242 : How To Add

\(\displaystyle \frac{\begin{array}[b]{r}7\\ +\ 6\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 12\)

\(\displaystyle 11\)

\(\displaystyle 13\)

\(\displaystyle 15\)

\(\displaystyle 14\)

Correct answer:

\(\displaystyle 13\)

Explanation:

To add we count up. Start at \(\displaystyle 7\) and count up \(\displaystyle 6\).

\(\displaystyle 7,8,9,10,11,12,13\)

\(\displaystyle \frac{\begin{array}[b]{r}7\\ +\ 6\end{array}}{ \ \ \space13}\)

Example Question #1243 : How To Add

\(\displaystyle \frac{\begin{array}[b]{r}5\\ +\ 8\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 13\)

\(\displaystyle 17\)

\(\displaystyle 16\)

\(\displaystyle 15\)

\(\displaystyle 14\)

Correct answer:

\(\displaystyle 13\)

Explanation:

To add we count up. Start at \(\displaystyle 5\) and count up \(\displaystyle 8\).

\(\displaystyle 5,6,7,8,9,10,11,12,13\)

\(\displaystyle \frac{\begin{array}[b]{r}5\\ +\ 8\end{array}}{ \ \ \space13}\)

Example Question #1244 : How To Add

\(\displaystyle \frac{\begin{array}[b]{r}6\\ +\ 10\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 13\)

\(\displaystyle 14\)

\(\displaystyle 15\)

\(\displaystyle 16\)

\(\displaystyle 12\)

Correct answer:

\(\displaystyle 16\)

Explanation:

To add we count up. Start at \(\displaystyle 6\) and count up \(\displaystyle 10\).

\(\displaystyle 6,7,8,9,10,11,12,13,14,15,16\)

\(\displaystyle \frac{\begin{array}[b]{r}6\\ +\ 10\end{array}}{ \ \ \ \space16}\)

Example Question #2081 : Operations

\(\displaystyle 48+123\)

Possible Answers:

\(\displaystyle 171\)

\(\displaystyle 603\)

\(\displaystyle 243\)

\(\displaystyle 201\)

\(\displaystyle 161\)

Correct answer:

\(\displaystyle 171\)

Explanation:

\(\displaystyle 48+123\) 

When adding these numbers, make sure you line up the tens digit with the tens digit and the ones digit with the ones digit.

Next, add from right to left. 

\(\displaystyle 8+3=11\) 

But the \(\displaystyle 1\) is carried over to the tens digit and will be added with the other tens digit.

The other \(\displaystyle 1\) is in the ones digit.

Next, we add \(\displaystyle 4+2+1\) which is \(\displaystyle 7\).

Finally, the \(\displaystyle 1\) in the hundreds digit is brought down.

Final answer is \(\displaystyle 171\).

Example Question #2091 : Operations

\(\displaystyle 243+568\)

Possible Answers:

\(\displaystyle 811\)

\(\displaystyle 701\)

\(\displaystyle 711\)

\(\displaystyle 801\)

\(\displaystyle 911\)

Correct answer:

\(\displaystyle 811\)

Explanation:

\(\displaystyle 243+568\) 

When adding these numbers, make sure you line up all the digits. Next, add from right to left.

\(\displaystyle 8+3=11\) 

But the \(\displaystyle 1\) is carried over to the tens digit and will be added with the other tens digit.

The other \(\displaystyle 1\) is in the ones digit.

Next, we add \(\displaystyle 4+6+1\) which is \(\displaystyle 11\).

The \(\displaystyle 1\) is carried over to the hundreds digit and the other \(\displaystyle 1\) is in the tens digit. 

Finally, we add \(\displaystyle 5+2+1\) which is \(\displaystyle 8\).

Answer is \(\displaystyle 811\).

Example Question #2092 : Operations

\(\displaystyle 178+249\)

Possible Answers:

\(\displaystyle 417\)

\(\displaystyle 427\)

\(\displaystyle 307\)

\(\displaystyle 327\)

\(\displaystyle 317\)

Correct answer:

\(\displaystyle 427\)

Explanation:

\(\displaystyle 178+249\) 

When adding these numbers, make sure you line up all the digits. Next, add from right to left. 

\(\displaystyle 8+9=17\) 

But the \(\displaystyle 1\) is carried over to the tens digit and will be added with the other tens digit.

The \(\displaystyle 7\) is in the ones digit.

Next, we add \(\displaystyle 4+7+1\) which is \(\displaystyle 12\).

The \(\displaystyle 1\) is carried over to the hundreds digit and the \(\displaystyle 2\) is in the tens digit. 

Finally, we add \(\displaystyle 1+2+1\) which is \(\displaystyle 4\).

Answer is \(\displaystyle 427\).

Example Question #2091 : Operations

\(\displaystyle \frac{\begin{array}[b]{r}10\\ +\ 10\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 20\)

\(\displaystyle 16\)

\(\displaystyle 17\)

\(\displaystyle 19\)

\(\displaystyle 18\)

Correct answer:

\(\displaystyle 20\)

Explanation:

To add we count up. Start at \(\displaystyle 10\) and count up \(\displaystyle 10\).

\(\displaystyle 10,11,12,13,14,15,16,17,18,19,20\)

\(\displaystyle \frac{\begin{array}[b]{r}10\\ +\ 10\end{array}}{ \ \ \ \space20}\)

Example Question #327 : Adding And Subtracting Within 20: Ccss.Math.Content.1.Oa.C.6

\(\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 11\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 15\)

\(\displaystyle 18\)

\(\displaystyle 19\)

\(\displaystyle 16\)

\(\displaystyle 17\)

Correct answer:

\(\displaystyle 15\)

Explanation:

To add we count up. Start at \(\displaystyle 4\) and count up \(\displaystyle 11\).

\(\displaystyle 4,5,6,7,8,9,10,11,12,13,14,15\)

\(\displaystyle \frac{\begin{array}[b]{r}4\\ +\ 11\end{array}}{ \ \ \ \space15}\)

Example Question #1247 : How To Add

\(\displaystyle \frac{\begin{array}[b]{r}5\\ +\ 12\end{array}}{ \ \ \space?}\)

Possible Answers:

\(\displaystyle 16\)

\(\displaystyle 18\)

\(\displaystyle 15\)

\(\displaystyle 14\)

\(\displaystyle 17\)

Correct answer:

\(\displaystyle 17\)

Explanation:

To add we count up. Start at \(\displaystyle 5\) and count up \(\displaystyle 12\).

\(\displaystyle 5,6,7,8,9,10,11,12,13,14,15,16,17\)

\(\displaystyle \frac{\begin{array}[b]{r}5\\ +\ 12\end{array}}{ \ \ \ \space17}\)

Learning Tools by Varsity Tutors