let’s play jeopardy!! math lingo rates and ratios solving proportions decimals, fractions, %...
TRANSCRIPT
LET’S PLAY JEOPARDY!!
Math Lingo
Rates and Ratios
Solving Proportions
Decimals, Fractions, %
Percent of a Number
Q $100
Q $200
Q $300
Q $400
Q $500
Q $100 Q $100Q $100 Q $100
Q $200 Q $200 Q $200 Q $200
Q $300 Q $300 Q $300 Q $300
Q $400 Q $400 Q $400 Q $400
Q $500 Q $500 Q $500 Q $500
Final Jeopardy
JeopardJeopardyy
$100 Question from Math Lingo
A unit rate is a rate with a denominator of ____.
$100 Answer from Math Lingo
1
$200 Question from Math Lingo
What does of stand for?
25% of 88
$200 Answer from Math Lingo
MULTIPLY
$300 Question from Math Lingo
A percent is a ratio that compares a number to ____.
$300 Answer from Math Lingo
100
$400 Question from Math Lingo DOUBLE JEOPARDY
Percents can also be written as _______ and _______.
$400 Answer from Math Lingo
Fractions and Decimals
$500 Question from Math Lingo
How do you find if the following is proportionate?
76
57
4
3
$500 Answer from Math Lingo
Cross-multiplying
$100 Question from Rates and Ratios
4
3
Write the following ratio in 2 other ways.
$100 Answer from Rates and Ratios
3:4
3 to 4
0.75
$200 Question from Rates and Ratios
20
4
Write the ratio in simplest form.
$200 Answer from Rates and Ratios
5
1
$300 Question from Rates and Ratios
Write the unit rate.
hr
mi
3
51
$300 Answer from Rates and Ratios
hr
mi
1
17
$400 Question from Rates and Ratios
Is 15 inches per 3 seconds written as a unit rate?
$400 Answer from Rates and Ratios
NO!!!!!!!!!
$500 Question from Rates and Ratios
Write an equivalent ratio of
14
12
$500 Answer from Rates and Ratios
.,42
36
28
24
7
6
14
12etc
$100 Question from Solving ProportionsDOUBLE JEOPARDY
12
21
4x
$100 Answer from Solving Proportions
7x
$200 Question from Solving Proportions
27
248x
$200 Answer from Solving Proportions
9x
$300 Question from Solving Proportions
Use cross-products to determine whether the ratios from a proportion.
20
8
15
6
$300 Answer from Solving Proportions
20
8
15
6
120=120 (yes)
$400 Question from Solving Proportions
x
20
12
15
$400 Answer from Solving Proportions
1615
240
15
15
24015
20
12
15
x
x
xx
$500 Question from Solving Proportions
The exchange rate of the American dollar to Chinese yuan is 1 to 7. If you have 49 yuan, how much in American dollars is that equivalent to?
$500 Answer from Solving Proportions
7
49
7
7
497497
1
x
x
x
dollarsx 7
$100 Question from Fractions, Decimals, %
Convert to a percent
0.60
$100 Answer from Fractions, Decimals, %
0.60 = 60%
$200 Question from Fractions, Decimals, % DOUBLE JEOPARDY
Convert to a decimal:
3%
$200 Answer from Fractions, Decimals, %
3% = 0.03
$300 Question from Fractions, Decimals, %
Convert to a fraction:
35%
$300 Answer from Fractions, Decimals, %
20
7
100
35%35
$400 Question from Fractions, Decimals, %
Convert to a percent:
20
13
$400 Answer from Fractions, Decimals, %
%65100
65
20
13
$500 Question from Fractions, Decimals, %
Convert to a percent:
15
6
$500 Answer from Fractions, Decimals, %
%40100
40
5
2
15
6
%404.015
6
Change fractiondecimal
OR
Change to equivalent fraction with 100 as den.
$100 Question from Percent of a Number
What is 50% of 78?
$100 Answer from Percent of a Number
50% of 78?
392
78
1
78
2
1
100
50
397850.
Change %decimal
OR
Change %fraction
$200 Question from Percent of a Number
What is 20% of 80?
$200 Answer from Percent of a Number
Change %decimal
OR
Change %fraction 165
80
1
80
5
1
100
20
168020.
What is 20% of 80?
$300 Question from Percent of a Number
What is 45% of 80?
$300 Answer from Percent of a Number
What is 45% of 80?
368045. Change %decimal
OR
Change %fraction 3620
720
1
80
20
9
100
45
$400 Question from Percent of a Number
What is the cost of a $30 plush elephant after a 20% discount?
$400 Answer from Percent of a Number
Step 1: 20% of $30 .20 x 30 = 6.00 (discount)
Step 2: $30.00 (original price) - $ 6.00 (discount)
$24.00
$500 Question from Percent of a Number DOUBLE JEOPARDY
What is the final cost of a $35 snow-globe with a 6% sales tax?
$500 Answer from Percent of a Number
Step 1: 6% of $35 .06 x 35 = 2.10 (sales tax)
Step 2: $35.00 (original price) +$ 2.10 (sales tax)
$37.10
Final Jeopardy
Madagascar produces 2/3 of the world’s _________.
Final Jeopardy Answer
Vanilla Beans