Transcript MATH UNIT 6

MATH
UNIT 6
Mrs. Gordon ordered 30 boxes
of cups for her restaurant.
Each box holds 15 cups.
How many cups did
she order.
Mrs. Gordon also needs new
plates for her restaurant.
She ordered 30 boxes. Each
box contains 12 plates.
How many plates did
she order?
Solve using pictures or models.
10 x 18
20 x 15
10 x 27
10 x 24
20 x 13
10 x 21
20 x 12
10 x 38
Solve using pictures or models.
20 x 18
30 x 15
20 x 26
30 x 24
30 x 13
20 x 21
30 x 12
20 x 28
Solve using pictures or models.
40 x 18
50 x 15
60 x 27
40 x 24
30 x 13
60 x 21
50 x 12
40 x 38
During the first 3 months of
the year, Sears sold 1,783
cameras. They sold 486 in
January and 378 in February.
How many cameras did they
sell in March?
Keira thinks that 40 x 25 is
greater than 45 x 20.
Is she correct?
How do you know?
The record for balancing
glasses was 75 glasses.
If each glass holds 20
fluid ounces, what is
the total fluid ounces all
of the glasses
could hold?
The American bison is the heaviest land
mammal in North America. They live
in groups of about 20 bison.
How many bison could be in 20
groups?
What are the multiplication facts
for these perfect squares?
36
64
81
25
100
49
16
9
Use mental math to Multiply
using multiples of 10
20 x 60
30 x 80
50 x 40
2 x 6 = 12
20 x 6 = 120
20 x 60 = 1200
3 x 8 = ____
30 x 8 = ____
30 x 80 = ____
5 x 4 = ____
50 x 4 = ____
50 x 40 = ____
1200
The worlds fastest drummer
can hit the drum 20 times
in one second. How many
times can he hit the drum
in 1 minute?
Most people use about 2 gallons
of water while brushing their
teeth. There are 16 cups
in one gallon. How
many cups will you
use each time you
brush your teeth?
There are 8 minutes of
commercials for every 30
minutes of TV. If you watch
TV for 2 ½ hours, how many
minutes will be commercials?
Coming up
next. Right
after this
commercial.
If Seattle reported 197 rainy
days last year. How many
days weren’t rainy?
Ready Set Go!
30 x 30
10 x 60
50 x 30
80 x 40
20 x 70
70 x 90
40 x 20
30 x 60
70 x 40
20 x 30
80 x 30
60 x 60
50 x 90
80 x 20
40 x 50
Ready Set Go!
40 x 40
10 x 70
50 x 40
80 x 60
40 x 80
70 x 30
90 x 40
30 x 70
60 x 50
30 x 40
80 x 50
60 x 70
50 x 30
70 x 40
50 x 60
The month of November has
30 days. If an amusement
park sells 300 tickets each
day in November, how many
tickets did they sell?
Hank wants to build a fence
around his yard for his dog.
If his yard is 90 feet by
60 feet, how much fencing
will Hank need?
HINT:
Perimeter =
2W + 2L
Or
W+W+L+L = P
60’
90’
Rounding to Estimate 87 x 12
Round 87 to the nearest ten.
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
7 is greater than 5 so you round up to _______
Now round 12 to the nearest ten.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
87 = ____________
12 = ____________ SO… ______
x ______ = ________
Destiny said that 960 is a
reasonable estimate for
96 x 12.
Write the equation to explain
how she got 960?
Round It!
24 x 18
33 x 31
48 x 21
45 x 37
28 x 27
72 x 38
24 x 28
42 x 17
82 x 36
25 x 61
15 x 38
88 x 23
57 x 49
66 x 42
54 x 18
6 x 51
8 x 44
91 x 12
9 x 29
75 x 15
Julia worked for 17 hours last
week creating homemade
gifts for her family.
ABOUT how many minutes
did she spend making gifts.
Holly is baking bread for her
family. She uses a secret
family recipe. Her bread calls
for 6 cups of flour and 4
cups of brown sugar. If Holly
triples the recipe, how much
sugar will she need?
Jacob has a tree farm.
About how many orange
trees does he have?
About how many Pear
and Apple trees does
he have?
Jacob has the same
amount of which
trees?
Type
Apple
Orange
Pear
Rows
Trees
28
38
38
28
31
48
What is the
approximate
number of
trees on his
tree farm?
Type
Apple
Orange
Pear
Rows
Trees
28
38
38
28
31
48
Morgan set up an online blog
so she could chat with her
friends. If her site averages
15 hits per day estimate the
number of hits her site will
receive in 30 days.
Using compatible numbers to
ESTIMATE
Estimate 24 x 41
Round to the
nearest 10
20 X 40 = _______
But you can get a closer
estimate by using
COMPATIBLE
Numbers.
24 X 41 = 25 x 40
It is easy to find the
product because
25 x 4 = 100
SO… 25 x 40 = 1000
Use COMPATIBLE NUMBERS strategy to
estimate the product if you can.
26 x 42
31 x 46
21 x 25
58 x 12
22 x 26
78 x 21
36 x 49
66 x 31
64 x 24
21 x 19
76 x 39
32 x 24
89 x 43
79 x 79
46 x 18
86 x 37
53 x 54
68 x 39
29 x 43
48 x 16
68 x 68
14 x 16
33 x 71
19 x 27
In 1858 two ships connected a
telegraph cable across the
Atlantic Ocean for the very first
time. Using the diagram,
estimate the total distance of
cable used.
1,010 miles
1,016 miles
How would you use estimation
to decide which has the
greater product?
39 x 21
__ x __
____
32 x 32
__ x __
____
Mrs. “B” ordered 28 trays of
flowers for the garden club.
Each tray contains 24 flowers.
What is a good estimate of
the number of flowers the
garden club will be planting.
Lydia estimates that she can
earn $75 per week this
summer working part time.
How many weeks will she
have to work in order to buy
the new tablet that costs
$300?
Bradon wants to sell his
computer so he can buy a
new $857 laptop.
If he sells his old computer
for $250, how much more
money does he need to
buy his new laptop?
Renee’ swims laps in her pool
for 65 minutes every day.
Estimate the number of
minutes she will swim if she
swims every day for the next
2 weeks.
Grant got a poster for the
wall in his bedroom.
It is quite large, measuring
4 feet wide and 7 feet long.
What is the perimeter of
the poster?
REMEMBER:
L+L+W+W=P
or
2xL + 2xW = P
Destiny and Deja made cookies to
sell at the Holiday bake sale.
They sold every cookie for a
profit of $72.
If they sold a total of 12 dozen
cookies, how much did they
sell each cookie for?
Francis and her family bought
3 foot long subs from
Subway. They spent $6 on
drinks and spent a total
of $24. How much did each
sandwich cost?
Jasmyn, Vanessa, and Shayla
are on their way to the
movies.
They each have $12 to
spend. If their tickets cost
$7.50 each, how much can
they spend on snacks?
Christopher and Tyler ride their
bikes around the perimeter of
the park every day after school.
The perimeter is 3 miles long.
If they rode around the park 5
times each day for 5 days, how
many total miles will they have
travelled?
Sondra spent $20 on art
supplies including tax.
She bought colored pencils for
$4.50 and a sketch pad for
$12.20. How much
change did
Sondra receive?
Sean and Lex went to the music
store. Sean bought 4 CDs and
2 DVDs. Lex got 3 CDs and a
pack of DVRs. How much did
they spend together?
CHARLIE’S DISCOUNT MUSIC STORE
DVRs
$6
DVDs
$11
CDs
$9
Cameron went to
McDonald’s to get
lunch for the class.
He bought 5 burgers,
12 cheeseburgers,
8 chicken sandwiches,
25 orders of fries, and
25 drinks.
What did lunch cost?
BURGER
$1.00
CHEESEBURGER
$1.50
CHICKEN
SANDWICH
$1.00
FRENCH FRIES
$1.00
SOFT DRINKS
$1.00
ALL DONE!