Transcript Jeopardy Game over Order of Operations and

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© Mark E. Damon - All Rights Reserved
Another
Presentation
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Round 2
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Final
Jeopardy
$
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Order of
Operatio
ns
Sub
variable
into
equation
Translate
Expressions
Pot Luck
$200 $200
$200
$200
$400 $400
$400
$400
$600 $600
$600
$600
$800 $800
$800
$800
$1000 $1000 $1000 $1000
Final
Jeopardy
Scores
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$200
Simplify the expression.
21 + 15 * 4
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What is x = 81
21 + 15 *4
21 +
60
81
Scores
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$400
Simplify the expression.
(3+9) /3 /2
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What is y = 2
(3+9) /3 /2
12 /3 /2
4
/2
=2
Scores
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$600
Simplify the expression.
15- 4 * 3 + 2 *7
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What is y = 17
15- 4 * 3 + 2 *7
15 -
12
15 - 12
3
+ 2 *7
+14
+14 = 17
Scores
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$800
Insert parentheses to make the
statement true.
4*2+3–4*5=0
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Answer: 4 *( 2 + 3) – 4 * 5 = 0
4* 5
20
- 20
- 20 = 0
Scores
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$1000
Compare. Use <, >, or =.
32 / (8-4)
32 / 8 - 4
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Answer:
32 / (8-4)
32/
8
4
32 / 8 - 4
4
-4
0
Scores
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$200
The price of getting a t-shirt design
created and printed is represented by
8s +15. Using this equation, how
much would it cost to get 25 shirts
printed?
(s = 25)
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$200
Answer: $215
8(25) +15 =
200
+ 15 = $215
Scores
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$400
The cost for a membership at
Lawrence Athletic Center is $99
to join, and $30 a month. The
equation for this is 30m +99.
How much would it cost to join
for one year?
(m= 12)
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Answer: $459
30(12) + 99 = cost
360 + 99 = $459 for one year
Scores
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$600
Wedding Planners charge a rental
fee of $350, plus $15 per person for
a wedding reception. The equation
for this is 15p + 350. How much
would the reception cost altogether
if 200 people attended?
(p = 200)
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$600
Answer: $3,330
15(200) + 350 = cost
3000
+ 350 = 3,350
Scores
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$800
Evaluate the expression below if
a = 3, b = 4, and c = 5.
4ab + c *c
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What is 73
4(3)(4) + 5 *5
48
+ 25 = 73
Scores
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$1000
At one flower shop, to put together
a bouquet of flowers, the vase
costs $3.50, and flowers are 1.20
apiece. The equation for this is
1.20f +3.50. What would it cost to
create a bouquet of a ten flowers?
(f = 10)
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Answer: $15.50
1.20(10) +3.50 = cost
12.0
+ 3.50 = $15.50
Scores
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$200
Translate the expression into a
math equation.
Two times y plus six
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What is 2y +6
Scores
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$400
Translate the expression into a math
equation.
Seven less than b.
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What is b - 7
Scores
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$600
Translate the expression into a math
equation.
M increased by eighteen
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$600
What is m +18
Scores
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$800
Translate the expression into a math
equation.
The quotient of four and y, plus ten
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What is 4 /y + 10
Scores
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$1000
Translate the expression into a math
equation.
Six times d, decreased by 7
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What is 6d - 7
Scores
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$200
Where could you insert
parenthesis to make the following
statement true?
4 + 4 + 4 * 4 = 48
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What is (4 + 4 +4 ) * 4 = 48
Do () first- 4 +4 + 4 = 12
Then 12 * 4 = 48
Scores
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$400
Evaluate the expression
3,
X when
x=4
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What is 64.
Replace the x with 4
to give you 43
means 4 * 4 * 4
4 * 4 = 16 * 4 = 64
Scores
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$600
Show math work to explain why
4 + 4 + 4/4 is not the same as
(4 + 4 +4) /4
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4 + 4 + 4/4 is not the same as
(4 + 4 +4) /4
4 + 4 + 4/4
(4 + 4 +4) /4
You would have
to do 4/4 first
which would
give you
You would have
to do (4 + 4 + 4)
first, which would
give you
4+4+1=9
12/4 = 3
Scores
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$800
Let’s see what you remember
about factorials!!!
Answer the following:
3! = ?
4! = ?
5! = ?
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Solution:
3! = 3 * 2 * 1 = 6
4! = 4 * 3 * 2 *1 = 24
5! = 5 * 4 * 3 * 2 * 1 = 120
Scores
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$1000
Oh no! It’s the hardest order of
operations problem ever!!! And no,
you can’t use a calculator! Good
luck!
42 * (52 – 104/2) * 451 /34 + 1
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Solution: 1
42 * (52 – 104/2) * 451 /34 + 1
42 * (52- 52) * 451/34 + 1
42 * 0 * 451/ 34 +1
0 * 451/ 34 + 1
Scores
0+ 1=1
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$200
Write 64% as a reduced fraction.
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Solution: 16/25
Put 64/100
Figure out what goes into 64 and
100
64 /4 = 16
100/4 = 25
Scores
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Write 18% as a reduced fraction.
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Solution: 9/50
18 /2 = 9
100 /2 = 50
Scores
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$600
Fill in the chart below.
Fraction
Decimal
Percent
1/5
.4
200
.75
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Fraction
Decimal
1
5
40
100
200
100
75
100
To change a fraction to a percent,
make a proportion. Use your
fraction, set it = x/100, and solve.
2/5
x
100
.20 or .2
Percent
20%
.4
40%
2
2.00
200
3/4
.75
75%
To change a percent to a fraction, put
the percent over 100 and reduce.
To Change
a Decimal
to a
Percent,
move the
decimal
Two places
to the
right.
Scores
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$800
In order to call off school, 20% of
the school population must be
sick and absent. If we have 680
students at school, how many
would need to be sick in order to
have school called off?
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Solution: 136 students
PART
%
=
WHOLE
100
X
680
13600
136
=
=
=
20
100
100x
x
Scores
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$1000
Colgate, the company that makes
toothpaste, currently has 36,800
employees that make up its
workforce. 4,440 people are
expected to lose their jobs
because the company is losing
money. What percent of the
employees will lose their jobs?
Round to the nearest percent.
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Solution: About 12% of the
employees will lose their jobs.
PART
%
=
WHOLE
100
4,400
x
=
36,800
100
440,000 = 36,800x
11.9% = x
Rounded to the nearest percent = 12%
Scores
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$200
Estimate (no calculator)
You have $50 to spend on clothes
at a store. If you want two shirts
that cost $18.95 and $10.85, and a
pair of pants that cost $23.75, will
you have enough money. Show
what you would round to.
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Solution: No;
$18.95 + $10.85 + $23.75
Rounded( So I could do the math in my head:)
20 +10 +25 = 55
No; I would not have enough money to
buy all three things
Scores
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I went to the store to buy as many
CD’s as I could. CD’s cost $18.87
apiece, and I have $59 dollars in
my pocket. Estimate how many
CD’s could I buy.
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Solution: What is 3
Rounded:
60 / 20 = 3
Scores
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Round to the nearest ten to
estimate (no calculator).
87.53 + 12.45
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Solution: 100
87.53 + 12.45
Rounded: 90 + 10 = 100
Scores
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Round to the nearest ten to
estimate an answer (no calculator).
182.32 / 89.56
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Solution: 2
182.32 / 89.56
180 / 90 = 2
Scores
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$1000
You have to type a 500 word
paper, and type at a rate of 47
words per minute. Estimate how
many minutes it would take you
to finish typing your paper (no
calculators).
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Solution: 10 minutes
Rounded: 500 / 50
50 / 5 = 10
Scores
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Proportions!
Scores
Final
Jeopary
Question
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1) Translate the following word
expression into a math equation.
Eight times s, increased by 15
2) Solve if s = 10
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Solution:
1)8s + 15
2)8 (10) + 15
80 + 15 = 95