Name
Rounding Nurnbers
B
l.lo
g?ET.=::gtrxicgt&si:&&iwEfl
You can use place value to round to the nearest ten or hundred.
Find the rounding place. lf the digit in the ones or the tens place
is 5, 6, 7, 8, or 9, then round to the next greater number. lf the
digit is less than 5, do not change the digit in the rounding place.
Round 17 to the nearest ten:
Explain.
20
7 is in fhe ones ploce. Rocrnd
Round 153 to the nearest ten.
to the next gneoten
ten.
150
Exptain. Becousg 3 is in the ongs Plqce on{ 3 is iqss thqn
the tens ploce doesn't chonge.
-5,
the digil in .
Round 1,575to the nearest hundred. 1'600Fxntain Becguse the 7 in the fens. ploce is 5 on gneoten, ngund
r-.^.}Jicur
to the
next greoten hondred.
1. Round 63 to the nearest ten:
Explain.
Flound each number to the nearest ten.
2.
58
3.
71
4.
927
5. 3,J21
2,345
9.
c,
o
c
o
i:
G
o
Round each number to the nearest hundred.
6. 577
7.
920
g.
t!
g
o
rd
o
o
10. Reasoning lf you live 71 mi from a river, does it make
sense to say you live about 80 mi from the river? Explain.
10
Use with Lesson 1-10.
8,750
Name
Rounding Nurnbers
P 1.10
Round to the nearest ten.
1.
37
2.
3.
92
133
Round to the nearest hundred.
5. 172
9.
6.
7.
929
8.
8,438
5,555
Number Sense lyrell says $750 is about $gOO. Sara says
$ZSO is about $ZOO. Who is correct? Explain.
10. Which two lakes have the same depth
when rounded to the nehrest hundred?
Depths of the Great Lakes
Lake
11. Which lake has a depth of about
900 fr?
Depth (feet)
Erie
210
Huron
750
Michigan
923
Ontario'
802,
Superior
1,333
Test Prep
12. Round 7,468 to the nearest hundred.
A. 7,400
B. 7,460
c.
7,47A
D. 7,500
(t
o
c
13, Writing in Math Explain how you would use a number
to round 148 to the nearest ten.
;
line
ao
o
,1'
o
a
I
o
@
10
Use with Lesson 1-10
,:
lu, .
Name
I More About Rounding
Round to the nearest
ten or ten dollars.
r. 16
2. 69
3. 44
6.$25
e.87
t.*-
z. $53
-_
s.
n.soo-
Round to the nearest
hundred or hundred do[[ars.
rr.338
rz. 426
rs. B4S
u. 650
.-.-.
16.
$13S
u.$256
Zl
--.
lo. $71
ts. 562
_-ls. $349
--20. $315
te. $7S0
$
guse the digits
%+
1, 3, and 5, wr,ite a numberthat
rounds
the number given.
zr.
300
22.400
23.
:;.i
to
500
24.100
llixed Applications
zs. Suzy has a total
of 2Sg points
on math tests. \rWren
rounded
zo.
to the nearest hundreO,
Jo frer
points round to 200
o, iOOZ
to
Maurice has $30,00. Can
he
buy a book for $16.0t;iupu
Ior { 12.00, and a *uguzr"*
for $2.50?
t8
th
o
zz.
E
o
I am a number between
53
and 73. When rounded.to
the
nearest ten I am 60. VWrat
number could I be?
o
e
{
za.
Kelly has 15 compact
discs.
Monroe has 1e
";fi;;;tir"r.
Who has more compact
discs?
\tVhat is the aifterenceZ
,}
6ll
frrr r\r^^r
I
il
Name
Rounding to Tens and
Hundreds
.:.
er#oHfdeaeh *urnber to the- nearest hgndrpdUlaut*rg'*',',***-*r*****.."r;JI,#
number line
to help you.
4oo
-H*
5oO
uoo
,. s7B
s.44s
4i',
l;ilri?T#ffi:fi
6.754
nea
,r::
t. 316
rest h undred. yriu,ma!
e. 28S
g.
6Zt
write which two tens or two
hundreds each number
b:.t*uee*,u
rr.25
rhgn.write what the number rounds
to,
n. 85
ri.,25o
'-' ,
10.
489
is
:"r:;. &n*E#
'
:- ,,.,; , . n:rr.
:;::!:Jrtr.i"1;t.,.ii.a;:
_
14. 5
.ii.i
--t.;
ft
+=
,r: ,,
-' _ i
-,
ilircd Applications
ts. Tyrone has 24 baseball
hats.
Does he have closer to
Z0
hats or 30 hats?
to. The movie begins
at 4:15. It is
two
houri tong. What
does the movie
ti**
g"t ,*ii--'
sE
E
=
rz. Lindsay has 1S2
teddy bears.
:To the,netr,r€st" hunA""A,
Suly
teddy bears does
r_mdsay have?
fro*
A
6o
tB.
Alyssa lives 150 miles
frorn
ljverdale,
j"-
mifur-ir;;.
FIagviIIe, and tOa miiei"-'
IroT Ctayton. Which to*r,
rs closest?
P58 oil llYowN
132
o
a
E
.0
o
Y
G
E