Transcript day 65 - Mr. O`s Class

BELLRINGER (DAY 65)
Number
Operations
Algebra
Geometry &
Measurement
Data,
Statistics &
Probability
Potpourri
Which two of the following fractions that have a sum of 2
1/4 ?
Solve the inequality: x – 11 < 20.
How many liters are in 2.5 kiloliters?
Identify the sample space for tossing two coins.
A boy sold his bicycle for $30. He later bought it
back again for $25. The next time he sold it for $40.
How much did he make overall?
Where was the first Thanksgiving?
RA – The Mayflower
LA – Jamestown, VA
RL – Plymouth, MA
LL – New York, NY
Evaluate two plus nine minus three
RA – don’t know
LA – I know
What bird did Benjamin Franklin
want as the national bird?
RA – Bald Eagle
LA – Turkey
RL – Owl
LL – Peacock
What is four squared?
RA – don’t know
LA – I know
Which President instituted
Thanksgiving as a national holiday?
RA – Abraham Lincoln
LA – Benjamin Franklin
RL – George Washington
LL – John F. Kennedy
What is fifty percent of seventyfive?
RA – don’t know
LA – I know
What is the relationship of girls to boys in
class?
Vocabulary:
ratio
A __________
is the relationship of one
number to another.
There are _________
ways to write a ratio.
3
Example: What’s the ratio of female
principals to male principals at JFK?
2 to 1
2:1
2/1
Simplifying Ratios:
All ratios must be in simplest terms (reduced)
(Divide each number by a common factor)
Example: What’s the ratio of continental
states to those separated?
48/2
Divide both by which factor?
2
24/1
Comparing Ratios:
To compare or order, ratios must be in the
same format (fractions or decimals)
Example: Order from least to greatest…
3:4; 2/7; 9 to 2
Make all fractions
3/4; 2/7; 9/2  21/28; 8/28; 126/28
Make all decimals
0.75; 0.29; 4.5