Why might
your
Whatmom
kind
dad
ofor
numbers
check
do youtheir
see
receipt
on this
after
receipt?
shopping?
Think about this:
Could you ever add or
multiply decimals to see
how much something
would cost?
Example: You want
to buy 3 packages
of EggLand Large
White Eggs instead
of one.
3.59 +3.59
3.59x +3.59
3= =
Think about this:
Could you ever add or
multiply decimals to see
how much something
would cost?
Example: You want
to buy 3 packages
of EggLand Large
White Eggs instead
of one.
$10.77
Think about this:
Sometimes you might even
have to multiply decimals with
other decimals.
Look on the receipt. Find
yellow onions.
It says: “1.26 lb @ $1.49/lb,”
but you paid $1.88. How do
you think they got that
number?
Think about this:
Sometimes you might even
have to multiply decimals to
decimals.
Why was the number not
1.8774?
Why was it rounded to 1.88
and not 1.87?
What might happen if we did not
understand decimals?
Think about this:
What might happen if we did not
have decimals?
By the end of this PowerPoint,
you will be able to:
• Compare decimals
• Order decimals
• See how important
decimals are in our lives
Today we will:
1. Do this PowerPoint together.
We will learn how to compare
and order decimals.
Today we will:
1. Do this PowerPoint together. We will
learn how to compare and order
decimals.
2. Do a decimal ordering game in
groups.
Today we will:
1. Do this PowerPoint together. We will
learn how to compare and order
decimals.
2. Do a decimal ordering game in
groups.
3. Complete a worksheet
independently.
Before we begin…who
remembers how to put words in
ABC order?
•
•
•
•
•
•
•
stoic
coerce
lethargic
languid
apple
coast
appease
Before we begin…who
remembers how to put words in
ABC order?
•
•
•
•
•
•
•
stoic
coerce
lethargic
languid
apple
coast
appease
• appease
• apple
•
•
•
•
•
coast
coerce
languid
lethargic
stoic
It works for decimals, too!!!
• Which is more: 1.45
2.54?
• Which is more: 0.45
0.54?
• Which is more: 0.2
0.19?
• Which is more: 0.7
• Which is more: 0.1
= 0.70?
0.01?
Let’s go shopping!
Remember to be frugal! We are
on a budget!
Which would you choose?
$1.2
$1.02
Which would you choose?
$39.15
$39.51
Which would you choose?
$3.1
$3.19
Which would you choose?
$2.31
$2.13
$3.01
With your elbow partner and
yourHow
copydo
of you
the grocery
receipt,
feel about
answer
the questions
on the
comparing
decimals?
next slide.
1. What did she spend more on, the green bell
peppers or the bananas?”
2. If you have $2.45 can you buy honey cured
ham? If not, how much more would you need?
3. The cucumbers are 2 for $1.00.
What would be more expensive: the 9 grain
bread for $3.99 or 6 cucumbers?”
4. What was the cheapest item she bought? The
most expensive? What was the range?
If you finish early, make up a question with your
partner. Put it on a post-it and stick it to the board. We
will start tomorrow’s lesson with your questions!
1. What did she spend more on, the green bell
peppers or the bananas?”
2. If you have $2.45 can you buy honey cured
ham? If not, how much more would you need?
3. The cucumbers are 2 for $1.00.
What would be more expensive: the 9 grain
bread for $3.99 or 6 cucumbers?”
4. “What was the cheapest item she bought? The
most expensive? What was the range on the
receipt?”
1. What did she spend more on, the green bell
peppers or the bananas?”
2. If you have $2.45 can you buy honey cured
ham? If not, how much more would you need?
No. You need $0.09 more.
3. The cucumbers are 2 for $1.00.
What would be more expensive: the 9 grain
bread for $3.99 or 6 cucumbers?”
4. “What was the cheapest item she bought? The
most expensive? What was the range on the
receipt?”
1. What did she spend more on, the green bell
peppers or the bananas?”
2. If you have $2.45 can you buy honey cured
ham? If not, how much more would you need?
No. You need $0.09 more.
3. The cucumbers are 2 for $1.00.
What would be more expensive: the 9 grain
bread for $3.99 or 6 cucumbers?”
The 9 grain bread. The cucumbers are only $3.00.
4. “What was the cheapest item she bought? The
most expensive? What was the range on the
receipt?”
1. What did she spend more on, the green bell
peppers or the bananas?”
2. If you have $2.45 can you buy honey cured
ham? If not, how much more would you need?
No. You need $0.09 more.
3. The cucumbers are 2 for $1.00.
What would be more expensive: the 9 grain
bread for $3.99 or 6 cucumbers?”
The 9 grain bread. The cucumbers are only $3.00.
4. “What was the cheapest item she bought? The
most expensive? What was the range on the
receipt?” The cheapest was the bulk garlic. The
most expensive was the TOI Turkey. Range = $6.57
Great! Now let’s try ordering
some fractions!
Put these decimals in order
from LEAST to GREATEST.
•
•
•
•
•
•
•
1.03
0.42
0.24
2.41
1.3
0.92
0.94
• 0.24
• 0.42
•
•
•
•
•
0.92
0.94
1.03
1.3
2.41
How do you feel about ordering
decimals?
Quietly get into these 6 groups:
Casey - Caitlin - Kalina
Jordan – Madison - Nana
Thaddeus - Matiwos - Emily
Lauren - Jack - Celeste
Thomas – Jasmine – John – Celeste
Corey - Joshua - John
When you finish, raise your hand and I will check
your work. Grab one decimal card from your group
and go back to your seat. Begin your worksheet.
If you finish early, do the challenge!
Get a worksheet from the podium. I
have done #1 for you:
How do you feel about ordering
decimals?
• Tell your elbow partner:
– one way you might use decimals in your life
besides grocery shopping
AND/OR
– one thing you learned about ordering
decimals
• I will ask your partner to share your
idea!
Ordering Decimals
EXTREME card sort!
Great job!