Common Core: 2nd Grade Math : Measurement & Data

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

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Example Questions

Example Question #457 : Operations

If I have \displaystyle 4 nickels and \displaystyle 4 dimes, how many cents do I have?

Possible Answers:

\displaystyle 56\cent

\displaystyle 55\cent

\displaystyle 60\cent

\displaystyle 42\cent

\displaystyle 40\cent

Correct answer:

\displaystyle 60\cent

Explanation:

Each nickel is worth \displaystyle 5\cent and each dime is worth \displaystyle 10\cent.

We have four nickels and four dimes.

 \displaystyle \frac{\begin{array}[b]{r}5\cent\\5\cent\\ \ 5\cent\\ +\ 5\cent\end{array}}{ \ \ \space 20\cent} \displaystyle \frac{\begin{array}[b]{r}10\cent\\ \ 10\cent\\10\cent\\ \ +\ 10\cent\end{array}}{ \ \ \ \space 40\cent}

\displaystyle \frac{\begin{array}[b]{r}20\cent\\ +\ 40\cent\end{array}}{ \ \ \ \space 60\cent}

Example Question #451 : Operations

If I have \displaystyle 2 quarter and \displaystyle 3 nickels, how many cents do I have?

Possible Answers:

\displaystyle 65\cent

\displaystyle 63\cent

\displaystyle 60\cent

\displaystyle 50\cent

\displaystyle 53\cent

Correct answer:

\displaystyle 65\cent

Explanation:

Each quarter is worth \displaystyle 25\cent and each nickel is worth \displaystyle 5\cent.

We have two quarters and three nickels.

 \displaystyle \frac{\begin{array}[b]{r}25\cent\\ +\ 25\cent\end{array}}{ \ \ \ \space 50\cent} \displaystyle \frac{\begin{array}[b]{r}5\cent\\ \ 5\cent\\ +\ 5\cent\end{array}}{ \ \ \space 15\cent}

\displaystyle \frac{\begin{array}[b]{r}50\cent\\ +\ 15\cent\end{array}}{ \ \ \ \space 65\cent}

Example Question #459 : Operations

If I have \displaystyle 6 dimes and \displaystyle 2 pennies, how many cents do I have? 

Possible Answers:

\displaystyle 69\cent

\displaystyle 60\cent

\displaystyle 64\cent

\displaystyle 62\cent

\displaystyle 68\cent

Correct answer:

\displaystyle 62\cent

Explanation:

Each dime is worth \displaystyle 10\cent and each penny is worth \displaystyle 1\cent.

We have six dimes and two pennies. 

\displaystyle \frac{\begin{array}[b]{r}10\cent\\ 10\cent\\ 10\cent\\ 10\cent\\ \ 10\cent\\+\ 10\cent\end{array}}{ \ \ \ \space 60\cent} \displaystyle \frac{\begin{array}[b]{r}1\cent\\ +\ 1\cent\end{array}}{ \ \ \ \space 2\cent}

\displaystyle \frac{\begin{array}[b]{r}60\cent\\ +\ 2\cent\end{array}}{ \ \ \space 62\cent}

Example Question #2331 : Operations

If I have \displaystyle 4 dimes and \displaystyle 2 pennies, how many cents do I have? 

Possible Answers:

\displaystyle 34\cent

\displaystyle 46\cent

\displaystyle 32\cent

\displaystyle 42\cent

\displaystyle 40\cent

Correct answer:

\displaystyle 42\cent

Explanation:

Each dime is worth \displaystyle 10\cent and each penny is worth \displaystyle 1\cent

We have four dimes and two pennies. 

 \displaystyle \frac{\begin{array}[b]{r}10\cent\\10\cent\\ \ 10\cent\\ +\ 10\cent\end{array}}{ \ \ \ \space 40\cent}  \displaystyle \frac{\begin{array}[b]{r}1\cent\\ +\ 1\cent\end{array}}{ \ \ \ \space 2\cent}

\displaystyle \frac{\begin{array}[b]{r}40\cent\\ +\ 2\cent\end{array}}{ \ \ \space 42\cent}

Example Question #462 : Operations

If I have \displaystyle 2 quarters and \displaystyle 7 pennies, how many cents do I have?

Possible Answers:

\displaystyle 58\cent

\displaystyle 61\cent

\displaystyle 57\cent

\displaystyle 60\cent

\displaystyle 59\cent

Correct answer:

\displaystyle 57\cent

Explanation:

Each quarter is worth \displaystyle 25\cent and each penny is worth \displaystyle 1\cent.

We have two quarters and seven pennies. 

\displaystyle \frac{\begin{array}[b]{r}25\cent\\ +\ 25\cent\end{array}}{ \ \ \ \space 50\cent}    \displaystyle \frac{\begin{array}[b]{r}1\cent\\1\cent\\ \ 1\cent\\ 1\cent\\ \ 1\cent\\1\cent\\ +\ 1\cent\end{array}}{ \ \ \ \space 7\cent}

\displaystyle \frac{\begin{array}[b]{r}50\cent\\ +\ 7\cent\end{array}}{ \ \ \space 57\cent}

Example Question #463 : Operations

If I have \displaystyle 4 dimes and \displaystyle 2 nickel, how many cents do I have? 

Possible Answers:

\displaystyle 65\cent

\displaystyle 60\cent

\displaystyle 70\cent

\displaystyle 50\cent

\displaystyle 55\cent

Correct answer:

\displaystyle 50\cent

Explanation:

Each dime is worth \displaystyle 10\cent and each nickel is worth \displaystyle 5\cent.

We have four dimes and two nickels. 

\displaystyle \frac{\begin{array}[b]{r}10\cent\\ \ 10\cent\\ 10\cent\\ +\ 10\cent\end{array}}{ \ \ \ \space 40\cent} \displaystyle \frac{\begin{array}[b]{r}5\cent\\ +\ 5\cent\end{array}}{ \ \ \space 10\cent}

\displaystyle \frac{\begin{array}[b]{r}40\cent\\ +\ 10\cent\end{array}}{ \ \ \space 50\cent}

Example Question #464 : Operations

If I have \displaystyle 2 quarters and \displaystyle 3 pennies, how many cents do I have? 

Possible Answers:

\displaystyle 50\cent

\displaystyle 57\cent

\displaystyle 56\cent

\displaystyle 53\cent

\displaystyle 58\cent

Correct answer:

\displaystyle 53\cent

Explanation:

Each quarter is worth \displaystyle 25\cent and each penny is worth \displaystyle 1\cent.

We have two quarters and two pennies. 

\displaystyle \frac{\begin{array}[b]{r}25\cent\\ +\ 25\cent\end{array}}{ \ \ \ \space 50\cent} \displaystyle \frac{\begin{array}[b]{r}1\cent\\1\cent\\ +\ 1\cent\end{array}}{ \ \ \ \space 3\cent}

\displaystyle \frac{\begin{array}[b]{r}50\cent\\ +\ 3\cent\end{array}}{ \ \ \space 53\cent}

Example Question #465 : Operations

If I have \displaystyle 4 nickels and \displaystyle 4 dimes, how many cents do I have? 

Possible Answers:

\displaystyle 60\cent

\displaystyle 52\cent

\displaystyle 58\cent

\displaystyle 54\cent

\displaystyle 63\cent

Correct answer:

\displaystyle 60\cent

Explanation:

Each nickel is worth \displaystyle 5\cent and each dime is worth \displaystyle 10\cent.

We have four nickels and four dimes. 

\displaystyle \frac{\begin{array}[b]{r}5\cent\\ \ 5\cent\\5\cent\\ +\ 5\cent\end{array}}{ \ \ \ \space 20\cent} \displaystyle \frac{\begin{array}[b]{r}10\cent\\10\cent\\ \ 10\cent\\ +\ 10\cent\end{array}}{ \ \ \ \space 40\cent}

\displaystyle \frac{\begin{array}[b]{r}20\cent\\ +\ 40\cent\end{array}}{ \ \ \ \space 60\cent}

Example Question #466 : Operations

If I have \displaystyle 3 quarters and \displaystyle 4 pennies, how many cents do I have?

Possible Answers:

\displaystyle 81\cent

\displaystyle 79\cent

\displaystyle 70\cent

\displaystyle 86\cent

\displaystyle 74\cent

Correct answer:

\displaystyle 79\cent

Explanation:

Each quarter is worth \displaystyle 25\cent and each penny is worth \displaystyle 1\cent.

We have three quarters and four pennies. 

\displaystyle \frac{\begin{array}[b]{r}25\cent\\ \ 25\cent\\ +\ 25\cent\end{array}}{ \ \ \ \space 75\cent} \displaystyle \frac{\begin{array}[b]{r}1\cent\\1\cent\\ \ 1\cent\\ +\ 1\cent\end{array}}{ \ \ \ \space 4\cent}

\displaystyle \frac{\begin{array}[b]{r}75\cent\\ +\ 4\cent\end{array}}{ \ \ \space 79\cent}

Example Question #321 : Measurement & Data

If I have \displaystyle 2 dimes and \displaystyle 3 nickels, how many cents do I have? 

Possible Answers:

\displaystyle 44\cent

\displaystyle 40\cent

\displaystyle 56\cent

\displaystyle 50\cent

\displaystyle 35\cent

Correct answer:

\displaystyle 35\cent

Explanation:

Each dime is worth \displaystyle 10\cent and each nickel is worth \displaystyle 5\cent.

We have two dimes and three nickels. 

\displaystyle \frac{\begin{array}[b]{r}10\cent\\ +\ 10\cent\end{array}}{ \ \ \ \space 20\cent} \displaystyle \frac{\begin{array}[b]{r}5\cent\\5\cent\\ +\ 5\cent\end{array}}{ \ \ \space 15\cent}

\displaystyle \frac{\begin{array}[b]{r}20\cent\\ +\ 15\cent\end{array}}{ \ \ \ \space 35\cent}

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