Rounding Test Prep

What is 10.319 rounded to the nearest tenth?

• 10

• 10.3

• 10.32

• 10.4

Answer explanation

Remember! A TENTH is one place values to the RIGHT of the decimal!

10.319

We know that when we round, we look to the number to the right to figure out if it rounds up or down. We then drop any numbers to the right of the tenths place.

10.319 becomes 10.3

Andrew has a file on his computer that is 144.138 megabytes in size. What is this number rounded to the nearest hundredth of a megabyte?

• 100 megabytes

• 144.1 megabytes

• 144.13 megabytes

• 144.14 megabytes

Answer explanation

Remember! A HUNDREDTH is two place values to the RIGHT of the decimal!

144.138

We know that when we round, we look to the number to the right to figure out if it rounds up or down.

144.138 becomes 144.14

The price of one gallon of heating oil is $2.689. What is this number rounded to the nearest penny?

• $2.68

• $2.69

• $2.70

• $3.00

Answer explanation

Remember! A penny is in the hundredths place. A HUNDREDTH is two place values to the RIGHT of the decimal!

$2.689

We know that when we round, we look to the number to the right to figure out if it rounds up or down. We drop the number after the hundredths!

$2.689 becomes $2.68

Round 12.87 to nearest ones place.

• 12.9

• 13

• 12.90

• 13.0

• A

• B

• C

• D

Rounding means...

• finding the exact answer.

• always making a number smaller.

• always making a number bigger.

• making a number simpler, but keeping its value closer to what it was.

• A

• B

• C

• D

CHALLENGE QUESTION

• A

• B

• C

• D

There are 254 counties in Texas.  What is that number rounded to the nearest ten?  What is that number rounded to the nearest hundred?

• 250, 300

• 200, 300

• 300, 300

• 240, 300

What is 8.952 rounded to the nearest tenth?

• 8

• 8.9

• 8.95

• 9

Answer explanation

Remember! A TENTH is one place values to the RIGHT of the decimal!

8.952

We know that when we round, we look to the number to the right to figure out if it rounds up or down.

8.952 becomes 9

This is because 9 tenths turns into 10 tenths which equals one whole!