Math 50 5.1 – Fractions, Mixed Numbers, and Rational Expressions 1.
Jeopardy Converting Fractions and Decimals Rational Numbers Mult. & Div Rational Numbers Add/Sub...
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Transcript of Jeopardy Converting Fractions and Decimals Rational Numbers Mult. & Div Rational Numbers Add/Sub...
JeopardyConverting Fractions and Decimals
Rational Numbers
Mult. & Div Rational Numbers
Add/Sub Fractions
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
OrderingRationalNumbers
$100 Question from H1
Write as a decimal: 7 3/10
$100 Answer from H1
Write as a decimal: 7 3/10
= 7.3
$200 Question from H1
Write as a decimal: 8 3/25
$200 Answer from H1
Write as a decimal: 8 3/25
=8.12
$300 Question from H1
Write as a decimal: 5 1/8
$300 Answer from H1
Write as a decimal: 5 1/8
=5.125
$400 Question from H1
Order 5/8, 0.6, 5/9 from least to greatest
$400 Answer from H1Order 5/8, 0.6, 5/9 from least to greatest
5/8=0.6250.6=0.65/9=0.5 So the order is 5/9, 0.6, 0.625
$500 Question from H1Write this fraction as a decimal.
-5 = 11
$500 Answer from H1
Write each fraction as a decimal. __ -5 = 0.45 11
$100 Question from H2
A number that can be written as a fraction is called a _________ number.
$100 Answer from H2
A number that can be written as a fraction is called a _________ number.
=Rational Number
$200 Question from H2
Write each decimal as a fraction or mixed number in simplest form.0.9=
6.45=
-0.6=
$200 Answer from H2
Write each decimal as a fraction or mixed number in simplest form.0.9= 9/10
6.45= 6 45/100 =6 9/20
-0.6= -6/10 = -3/5
$300 Question from H2
Write each decimal as a fraction or mixed number in simplest form.5.22 =
-0.333… = _2.25 =
$300 Answer from H2Write each decimal as a fraction or mixed number in simplest form.5.22 = 5 11/50
-0.333… = -1/3 _2.25 = 2 25/99
$400 Question from H2
Natural Whole Integer Rational Real
4
-7
3/4
0.3
0
$400 Answer from H2
Natural Whole Integer Rational Real
4 X X X X X
-7 X X X
¾ X X
0.3 X X
0 X X X X
$500 Question from H2Determine whether each statement is sometimes, always or never true.
An integer is a rational number.
A rational number is an integer.
A whole number is not a rational number.
$500 Answer from H2Determine whether each statement is sometimes, always or never true.
An integer is a rational number. =Alwaysexample: -2 = -2/1
A rational number is an integer. =Sometimesexample: ½ is not, but -2 is
A whole number is not a rational number. =Neverexample: 4 = 4/1
$100 Question from H3
Multiply and Simplify if able2 x 13 8
$100 Answer from H3
Multiply and Simplify if able2 x 1 = 2 = 13 8 24 12
$200 Question from H3
Divide and Simplify if able:
4 Divided by 1 =9 6
$200 Answer from H3
Divide and Simplify if able:
4 Divided by 1 = 9 6
4 x 6 = 4 x 2 = 89 1 3 1 3
$300 Question from H3
Multiply and Simplify if able:
- 3 3 x 1 =4 4
$300 Answer from H3
Multiply and Simplify if able:
-3 3 x 1 = -15 x 1 = - 154 4 4 4 16
$400 Question from H3
Multiply and Simplify if able: b . 3ac =
2a 4b
$400 Answer from H3
Multiply and Simplify if able: b . 3ac = 2a 4b
1 . 3c2 4
3c8
$500 Question from H3
Evaluate:How many cheerleading uniforms can be made with 22 3 yards of fabric if each uniform requires 7 yard? 4 8
$500 Answer from H3Evaluate:How many cheerleading uniforms can be made with 22 3 yards of fabric if each uniform requires 7 yard? 4 8
22 3 divided by 7 = 91 divided by 7 = 91 . 8 4 8 4 8 4 7
13 . 2 = 26 = 26 1 1 1
$100 Question from H4
Find each sum or difference. Write in simplest form.
2 + 1 =5 5
10 + 8 =11 11
$100 Answer from H4
Find each sum or difference. Write in simplest form.
2 + 1 = 3 5 5 5
10 + 8 = 18 or 1 7 11 11 11 11
$200 Question from H4
Find each sum or difference. Write in simplest form.
12 7 - 7 3 + 2 5 = 8 8 8
5 5 + 4 3 - 2 1 = 9 9 9
$200 Answer from H4
Find each sum or difference. Write in simplest form.
12 7 - 7 3 + 2 5 = 7 9 = 8 1 8 8 8 8 8
5 5 + 4 3 - 2 1 = 7 7 9 9 9 9
$300 Question from H4Find a common denominator, add the following and then reduce:
27 =
+ 3
4 =
$300 Answer from H4Find a common denominator and add the following:
2 x 4 87 x 4 = 28
+ 3 x 7 21 4 x 7 = 28
29 =1 128 28
$400 Question from H4Find a common denominator, add the following and then reduce:
4 56 =
+ 5 3 4 =
$400 Answer from H4
Find a common denominator, add the following and then reduce: 4 5 x 2 4 10
6 x 2 = 12
+ 5 3 x 3 5 9 4 x 3 = 12
9 19 = 10 7 12 12
$500 Question from H4
Find a common denominator, subtract the following and then reduce: -2 1
5 =
+ 4 1 6 =
$500 Answer from H4Find a common denominator, subtract the following and then reduce: -2 1 x 6 -2 6 = -2 6
5 x 6 = 30 30
+ 4 1 x 5 5 5 = 4 30+5 6 x 5 = 30 30
2 29 30
$100 Question from H5
Order the following from least to greatest.
.2, ½, 2.5, ¾
$100 Answer from H5
.2, ½, ¾, 2.5
$200 Question from H5
Put the following in order from greatest to least.
2.78, 10/2, .02, 2.6
$200 Answer from H510/2, 2.78, 2.6, .02
$300 Question from H5
Replace the and sign with <, >, or =
2.0202 and 2.2020202
$300 Answer from H5
2.0202 < 2.2020202
$400 Question from H5Order from least to greatest
2.2, 2.02, .202, .22222, 22.2
$400 Answer from H5.202, .22222, 2.02, 2.2, 22.2
$500 Question from H5Order from greatest to least
5.6, 5 ½ , 5.76, 5.06, 15/3
$500 Answer from H5
5.76, 5.6, 5 ½ , 5.06, 15/3
Final Jeopardy
Yesterday Paul buys 5 mints for $1.12 which included the 7 cents for sales tax. If b is the cost of each mint before tax, then solve for b. (Hint this is a two step equation.)
Final Jeopardy AnswerYesterday Paul buys 7 mints for $1.12 which included the 7 cents for sales tax. If b is the cost of each mint before tax, then solve for b.
5b + .07 = $1.12 - .07 -.075b = $1.055 5So:b = $0.21