Name
PROBLEM-SOLVI NG SKI I.L
R 10-13
Extra or Missing lnformation
Tiles Marlena is going to tile her kitchen floor with square tiles that
are 1 ft on each side. Marlena's kitchen is '13 ft long, 10 ft wide, and
8 ft tall. How many tiles will Marlena need to cover her floor?
Read and Understand
Step 1: What do you know?
The tiles are 1 ft by 1 ft. The kitchen is 13 ft by 10 ft by 8 ft.
Step 2: What are you trying to find?
The number cf tiles needed to cover the kitchen floor
Plan and Solve
Step 3: ls there enough information?
There is enough information to solve the problem.
The kitchen floor is '13 ft by 10 ft, so the area is 130 ft2.
Since each tile is 1 ft by 1 ft, each tile will cover an area of 1 fl2.
Marlena will need 130 tiles to cover the kitchen floor.
Look Back and Gheck
Step 4: ls the answer reasonable?
Yes. The tiles each cover 1 ft2, so 130 tiles are needed to cover the
130 ft2 area of the kitchen floor.
Decide if the problem has extra or missing information. Solve if you
have enough information.
1.
One rectangle has a perimeter of 24 cm. A second rectangle has
a perimeter of 26. Which rectangle has the larger area?
(o
ci
2.
s
i
One square has an area of 36 m2. Another square has an area of
25 m2. Which square has the larger perimeter?
Ed
o
f
tu
c
(E
(!o
@
128
Use with Lesson 1o-13.
Name
PROBLEM.SOTVIITG SKITL
Extra or Missing lnformation
PS
IO.t3
Pool covers rn the winter,
Maria,s famiry covers their
circurar poor
with a prastic cover. *re area
oiin-" ,rrra"e of their poor is
706'5 ft2' The pool,store;J[
about
il;"overs
at
a
discount
of
1s%o, and
sales tax is s%'
yhatqg"iri p"o'r cover
M";il,s famiry need
to cover the surface of their
Jil
p"ji-
1.
What is the area of the pool,s
surface?
2. What measurement are you
asked to find?
3' ls there extra information in the probrem?
tf so, what is it?
4.
ls there missing information
that you need to
solve the probL m? ffs",
*nuij, itz
5'
Sorve the probrem. write your
answer in a comprete sentence.
6.
ls your answer reasonable?
Solve Another problem
7'
(o
Laura baked vegetabre rasagna.
The pan she used was
rectangurar and had an
ur""'J 1 r I in!. w"n;; ill:'the rength
width of the pan.Laura G;J
to ort the rasagna? Do you and
have
lr yo,".h"u"
information,
:jlJ: ffffi;gjnformationz
"no"rsi
o
-.
c
.9
6
o
a
t!
o
a
o
o
IL
o
128
Usewith Lesson 1o-13.
Name
P 10.13
PROBTEM.SOLVING SKILL
Extra or Missing lnformation
Decide if each problem has extra or
missing information. Solve if you have
enough information.
The table shows an estimate of the world's
population in various years.
abOut how many more
people were there in the year 2000 than
in the year 1600?
1. As a percentage,
World Population
600,000,000
900,000,000
1,500,000,000
6,000,000,000
Year
700
1 800
1 900
2000
1
The world's population will increase in the future. During which
1OO-year period did the world's population increase the most?
3. Wendi is making a wooden box to store her trading cards. She
has about 1,000 trading cards. The box will have 4 compartments.
The base will be 10 in. wide. What is the area of the base?
4. The circumference of the front wheel on Mike's bike is 50.24 in.
Mike's bike is red and has a new seat. What is the area of the
front wheel of the bike?
5. Kylie works in a bakery. There are rectangular and circular
baking pans. Of the circular baking pans, there are three sizes:
large, medium, and small. The diameter of the small baking pan
is 8 in. and the diameter of the medium baking pan is 10 in.
What is the circumference of the large baking pan?
(o
o
c
o
6
o
f
E
uJ
c
(d
(Io
@
''|28
Use with Lesson 1o-13.
Name
It's in There
A.
1. How many squares
are in picture A?
2. How many complete circles are in picture B?
3. How many triangles are in picture C?
128
Use with Lesson 1o-13.
E 10.r 3
VISUAL THINKING
p to.t3
PROBLEM.SOLVII{G SKILL
SKILL
PROBLEM.SOLVING
Extra or Missing lnformation
Extra or Missing lnformation
Decide if each problem has exva or
missing infomation. Solve if you have
enough infomation.
Tiles
N,larlena is going to tile her kitchen floor with square tiles that
are 1 ft on each side. fi/adena's kitchen is 13 fi long, 10 ft wide, and
8 ft iall. How many tiles will N,4arlena need to cover herfloor?
The table shows an estimate ofthe world's
population in various Years,
l.
1- lre-1T".d""du"d-;A;a-l
1: Whst do yo! knoM
step
As a percentage, about how many more
people werethere in the year 2000 than
in the year 1600?
2.
Step 2: What are you irying to fnd?
The world's population will increase in ihe future. During which
'1Oo-year period did the world's population increase the most?
Step 3: ls ihere enough ido.mation?
The number
lhet,klerroo'rs
Ma'l"nc$il
The circumference of the ircnt wheel on lvlike's bike is 50.24 in.
Mike's bike is r€d and has a new seai. What is the area of the
{roni wheel ofthe bike?
5.
inioimation;
need€d io coverrhe kitchen fLoor
rJ
1bj
10 d. so
r.edrea s - _o+.
eachlllewill coveran area oi
130U"s(o_ove ti€"rrr lloo
ne4
i
fr2
f L..kB*kqlrdEhsc}
$op
4:
lsthe answerreasonable?
Yes. The tiles each cover 1 n3, so 130 iiles aro
130fl2 area oiihe kiichen tloor
neded
1o
cover ihe
Decide ifthe problem has extra or missing information. Solve ii you
have enough information.
200.96 in2
1.
One rmiangle has a perimeter of 24 cm. A second rectangle has
a perimeter of 26. Which rectangle has the larger area?
Missinq information: lenqths of sides
Kylie works in a bakery There are rectangular and circular
baking pans. Of the circular baking pans, there are three siz€s:
large, medium, and small. The diameter of the small baking pan
is 8 in. and the diameter of the medium baking pan is 10 in.
What is the circumference ofthe large baking pan?
2.
Missing information; the diameter of
the larqe bakinq pan
128
fr.
Since eachtile is 1 ft by 1 fr,
Wendi is making a wooden box to store her trading cards. She
has about 1,000 trading cards. The box will have 4 compadments'
The bdewill be 10 in. wide. What isthe areaofthe base?
Eiiii
I
is enough informalion 10 solve ihe problem.
Ihere
Missing information; the length of the
base
4.
ofiiles
by
f Prrir-t-3otr;------:
Eitra information; 1900 to 2000
3.
klchen s 13fi by 10ft
The ties are 1 fr by 1 ft. The
Miising information; the world's
oooulation in 1600
The first souare has a oerimeter ol 24 m.
The second square has a perimeter of 20 m.
The first souare has the larqer perimeter.
1
u*wdhLessnlor3
One square has an area of 36 m2. Anothor square has an area of
25 m2- Which square has the larger perimeter?
28
usewiih L€sson 10
13
Name
It's in There
E
lo.l3
VISUAL THINKITG
PROBLEM.SOLVING
PS
SKILL
to.t3
Extra or Missing lnformation
Pool Covers ln the wintei Maria's family covers their circular pool
with a plastic cover The area of the surface of their pool is about
706.5 ft2. The pool store sells pool covers at a discouni of 15%, and
sales ta is 5%. Whai diameter pool cover does Maria's family need
io cover the surface of their pool?
-x-ji--"d u"d-;ffi--l
L
What is the a€a of the pool3 surface?
2.
What measurement are you asked to find?
706.5 ft2
The diameter of the pool cover
-TI---FEi"A;E6G----]
3,
ls there
ext€ information
in the problem? lf so, what is it?
Yes, the discount and sales tax are extra information.
How many squares are in Picture A?
14 squares
io
4.
ls there missing information ihat you need
solve the problem? lf so, what is it?
5,
Solve the problem. Wate your answer in a complete sentence
No
A pool cover with a diameter of 30 ft is
needed.
(-dkB*-G;,;t;.;if
6.
ls your answer reasonable?
Yes. the math checks.
How many complete circles arc in pidure B?
18 circles
Solve Another Problem
How many triangles are in picture C?
3.
37 trianqles
7.
Laura baked vegetable lasagna. The pan sho used was
redangular and had an area of 1 17 in2. What was the length and
width ofthe pan Laura us€d to bake the lasagna? Do you have
extra or missing infomation? li you have enough information,
solve the problem-
Not enouqh information
128
128
usewntsrcnrors
Use with Chapter 10, Lesson 13
128,".*nnr**"'o,"
@
d
g
i
F
6
o
l
!
ul
c
o
6
(ro
o