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SAT Math Fractions, Dec., %, Order of Operations, and ratio/proportions Flashcards | StudBud
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SAT Math Fractions, Dec., %, Order of Operations, and ratio/proportions
SAT Math Fractions, Dec., %, Order of Operations, and ratio/proportions
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Answers
1
True or False? Multiplication always comes before division in order of operations.
False
True
2
True or False? Percent means "per hundred."
False
True
3
Calculate: 2 - 10/5 + 4
-2
7
1
-1
4
Dividing by 2/5 is the same as multiplying by which of the following?
5/2
0.4
25
2/5
5
True or false: A ratio of 2 to 7 is equal to 6:21?
True
False
6
Before you can add or subtract fractions what must you have?
Common Denominator
Common Numerator
Common Factor
Nothing, just add top and bottom
7
Use paper. If (x + 3)/2 = 6/12 then find x.
2
19/12
-2
12/19
8
Find x: x/4 = 20/16
3
5
4
6
9
Convert .0057 to a percent.
5.7%
57%
0.57%
.0057%
10
If a/d = b/c then ac = bd. True or False?
True
False
11
1/3 = ?
.25
.2
.3
.33333333
12
To find the amount of an item after a 20% decrease you should multiply by what?
0.7
1.20
0.8
0.2
13
If a/b = 3/4 and b/c = 2/5 then a/c =?
3/5
4/5
2/3
3/10
14
1/2 = ?
.5
.75
.66666666
.25
15
Convert 8% to a decimal.
0.008
0.08
8
0.8
16
1/4 = ?
0.25
0.5
0.33
0.2
17
True or False. When multiplying fractions you can cancel before multiplying.
True
False
18
1/3 - 2/9 = ?
-1/9
-4/9
1/9
-1/6
19
Which answer best describes 50%?
1/2
All of the other answers
.5
50/100
20
Find 5% of 150.
17.50
75
7.5
125
21
25% = ?
25
0.25
1/5
1/8
