Transcript 4.4 Round Decimals to the hundredth

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
rounding
$36.87
$40.00
A Common Misunderstanding
Not dividing the whole into the correct
number of equal parts.
0.8
0
0
1
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?
Between which
two hundredths
is 4.317?
4.317 = 4.32
0.007
4.31
4.310
> 0.003
4.317
4.320
4.32
Core Lesson
What is 2.544 rounded to the nearest hundredth?
2.544 comes
between 2.5 and
2.6.
2.544
Between
What ifwhich
my
two hundredths
number
line only
is
2.544?
shows tenths?
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
2.54
2.540
< 0.006
2.544
2.550
2.55
Core Lesson
Carlos swam the 100 meter race in 59.812 seconds. What
is his time rounded to the nearest hundredth of a second?
59.812 = 59.81Between which
two hundredths
is 59.812?
0.002
< 0.008
59.810
59.81 59.812
59.820
59.82
In this lesson you have
learned how to round
decimals to the nearest
hundredth by using a
number line.