Carlos swam the 100 meter race in 59.813 seconds. What is his time rounded to the nearest hundredth of a second?

In this lesson you will learn how to round decimals to the nearest hundredth by using a number line.

Let’s Review equivalent
= 0.3
= 0.30

Let’s Review
$36.87
rounding
$40.00

A Common Misunderstanding
Not dividing the whole into the correct number of equal parts.
0.8
0 1
0 1

A Common Misunderstanding
Misapplying a rounding “rule” in order to solve a problem.
4.48
4.48
4.5
5.0
4.0

Core Lesson
What is 4.317 rounded to the nearest hundredth?
4.317
0.007
>
= 4.32
0.003
Between which two hundredths is 4.317?
4.317

Core Lesson
What is 2.544 rounded to the nearest hundredth?
2.544 comes between 2.5 and
2.6.
2.544
What if my is 2.544?
2.0
3.0
2.5
2.6

Core Lesson
What is 2.544 rounded to the nearest hundredth?
2.544
2.50
2.60

Core Lesson
What is 2.544 rounded to the nearest hundredth?
2.544
= 2.54
0.004
< 0.006
2.544

Core Lesson
Carlos swam the 100 meter race in 59.812 seconds. What is his time rounded to the nearest hundredth of a second?
0.002
59.812
<
= 59.81
Between which two hundredths is 59.812?
0.008
59.812

In this lesson you have