Transcript Lesson 1-4

EnVision Math
Topic 1:
Lesson 1-4
Rounding Whole Numbers
2011-12
Luka and Issy
Mason and Jack
Ellie and Sierra
Gabe and Wes
Samantha and Alyssa
Dominic and Jace
Emily and Paige
Anthony and Oluwafolajinmi
How do I
round
numbers?
300
Write a
number that
is greater
than 300 that
rounds to
300.
400
Write a
number that
is greater
than 300 that
rounds to
400.
Round to the nearest thousand.
8,723
9,000
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the nearest thousand.
293,685,407
293,685,000
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the nearest hundred thousand.
293,685,407
293,700,000
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the nearest hundred.
293,685,407
293,685,400
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the nearest million.
293,685,407
294,000,000
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the nearest ten thousand.
293,685,407
293,6 90,000
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the nearest ten.
293,685,407
293,685,4 1 0
Find the
place
that I am
rounding
to.
Look at
the digit to
the right
of this
place.
If the digit
to the
right is
5 or more,
add 1.
If the digit
to the right
is less than
5, leave it
alone.
Round to the place of the
underlined digit.
128,955
12 9,000
Round to the place of the
underlined digit.
85,639
85,64 0
Round to the place of the
underlined digit.
9,924
10,000
Round to the place of the
underlined digit.
1,194,542
1,1 9 0,000
Round to the place of the
underlined digit.
160,656
200,000
Round to the place of the
underlined digit.
493,295
493,000
Round to the place of the
underlined digit.
39,230
39,000
Round to the place of the
underlined digit.
77,282
77,2 80
Round to the place of the
underlined digit.
54,846
5 0,000
Round to the nearest dollar.
$6.73
$7.00
Round to the nearest dollar.
$254.13
$25 4 .00
Round to the nearest dollar.
$92.87
$93.00
Round to the nearest dollar.
$537.27
$537 .00
Round to the nearest dollar.
$38.95
$39.00
Round to the nearest ten dollars.
$57.25
$6 0.00
Round to the nearest ten dollars.
$32.99
$30.00
Round to the nearest ten dollars.
$91.88
$90.00
Round to the nearest ten dollars.
$78.15
$80 .00