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4th Grade Math : Number Sense

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Example Questions

Example Question #1 : Number Sense

Round $932\textup,412$ $\displaystyle 932\textup,412$ to the nearest ten.

Possible Answers:

$932\textup,400$ $\displaystyle 932\textup,400$

$932\textup,410$ $\displaystyle 932\textup,410$

$932\textup,000$ $\displaystyle 932\textup,000$

$932\textup,500$ $\displaystyle 932\textup,500$

Correct answer:

$932\textup,410$ $\displaystyle 932\textup,410$

Explanation:

When we round a number to the nearest ten we look to the ones place to tell us if we round up or down.

$932\textup,41{\color{Blue} 2}$ $\displaystyle 932\textup,41{\color{Blue} 2}$

If the number in our ones place is $\displaystyle 5$ or greater, we round up. If the number in the ones place is $\displaystyle 4$ or less, we round down. When we round up, the number in the tens place increases by $\displaystyle 1$ and all the other numbers to the right become $\displaystyle 0$. When we round down, the number in the tens place stays the same and all the other numbers to the right become $\displaystyle 0$.

In this case, $\displaystyle 2$ is less than $\displaystyle 5$ so our rounded number is $932\textup,410$ $\displaystyle 932\textup,410$

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Example Question #2 : Number Sense

Fill in the blank with the correct sign.

$2 \textup,923$ $\displaystyle 2 \textup,923$ __________ $2 \textup,921$ $\displaystyle 2 \textup,921$

Possible Answers:

$\displaystyle >$

$\displaystyle < $

$\leq$ $\displaystyle \leq$

$\displaystyle =$

Correct answer:

$\displaystyle >$

Explanation:

$2 \textup,923>2 \textup,921$ $\displaystyle 2 \textup,923>2 \textup,921$ because of the digit in the ones place. 3 is greater than 1.

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All 4th Grade Math Resources

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4th Grade Math : Number Sense

Study concepts, example questions & explanations for 4th Grade Math

All 4th Grade Math Resources

Example Questions

Example Question #1 : Number Sense

Example Question #2 : Number Sense

All 4th Grade Math Resources

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