-.:, Sarah decides to buy square tiles to cover
her kitchen floor. Each square measures
12" x 12" and costs $1.39. How much will it
cost to cover her 10' x7' floor?
Step 1: Convert to same base measurement if
given different bases. Example above
gives each square measurement in
terms of inches but floor is in feet.
12 in = 1 ft, so each square is 1' x 1' ,
-j
Step 2: Calculate the area that each tile covers.
1xi =i sq.rt
Step 3: Find the number of square feet of floor
that needs to be covered.
Area=lxw
= 10' x7'
=7A sq.ft
Since each tile covers 1sq. ft, Sarah needs 70
tiles
,
Step 4: Determine cost
70 tiles x $1.39 per tile = $97.30
,3
Usually, the dimensions of a floor do not
measure to a whole number of feet. To simplify
calculations and to be sure you get enough
covering, round up to the next foot.
EXAMPLE:
Sarah now decides to buy square tiles to cover
her dining room floor. Each tile measures 12" x
12" and a box of 45 tiles costs $29 .25. How
much will it cost to cover her 15'6" x 12t7tt
.::;
$
Step 1: Convert to same base measurement
12 in = 1 ft, so each square is 1' x
1'
.
Step 2: Calculate the area that each tile covers.
1x1= 1sq.ft
**continued next page
Step 3: Find the number of square feet
of floor that needs to be covered. Round
first, if necessary
15'6" rounds to 16'
12'7" rounds to 13'
Area =
lxw
16' x 13'
208 sq. ft
1
,
Since each tile covers 1 sq. ft, Sarah needs 208
tiies
t
-):
I
Step 4. Find number of boxes of tile needed.
Divide number of tiles needed by the
number of tiles in one box (45).
208+ 45 = 4.6, so round up to 5 boxes
Step 4: Determine cost
5 boxes x $Zg ,25 per box
- $146,25
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Listed below are the dimensions of floors. Calculate the
area of each floor to be covered, number of tiles needed
and what the cost of tiling would be using 12" x12" tiles.
Show work below the chart.
Cost per
Tile
$0.ee
$1.29
$3.5e
$1.5e
_L1
Floor
Dimensions
10'x 16'
8'x 11'
9' x 17'
19'x 16'
Area
Number of
Tiles
Needed
Cost
,
Listed below are the floor dimensions, Calculate the area of
each floor to be covered, number of boxes of tiles (45 tiles
per box) needed and what the cost of tiling would be using
12" x 12" tiles. Remember to round the floor dimensions to
the next foot and number of boxes of tiles to the next whole
number. Show work below the chart.
Cost per
Box
$20.e9
$15.99
$35.55
$1 6.1 7
Floor
Dimensions
14t6tt x 15'2"
12'4" x 16'7"
11'2" x7,9,,
10!11" xTtgtt
Area
Number of
Boxes of
Tiles
Needed
Cost