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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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Basic SAT Math (Number Sense)
Flashcards
26 cards
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Practice quiz
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Questions
26
Answers
1
True or False? Multiplication always comes before division in order of operations.
True
False
2
1/4 = ?
0.2
0.33
0.5
0.25
3
If a/d = b/c then ac = bd. True or False?
False
True
4
Dividing by 2/5 is the same as multiplying by which of the following?
0.4
25
2/5
5/2
5
Use paper! If a/b = 3/4 and b/c = 2/5 then a/c =?
3/10
2/3
3/5
4/5
6
To find the final amount after a 30% increase in one step you should multiply by what decimal?
1.30
0.70
30
0.30
7
Which answer best describes 50%?
.5
50/100
All of the other answers
1/2
8
Convert .0057 to a percent.
.0057%
0.57%
57%
5.7%
9
To find the amount of an item after a 20% decrease in one step you should multiply by what?
0.2
0.7
1.20
0.8
10
The ratio of girls to boys is 23 to 35. How can we write that as a ratio?
35 to 23
35:23
23:35
23 x 35
11
Use paper if necessary. Subtract by hand. 1/3 - 2/9 = ?
-1/9
-4/9
-1/6
1/9
12
Find 5% of 150.
75
7.5
17.50
125
13
Use paper if necessary. Find x: x/4 = 20/16
5
4
6
3
14
Use paper. If (x + 3)/2 = 6/12 then find x.
12/19
19/12
2
-2
15
1/3 = ?
.33333333
.2
.25
.3
16
25% = ?
25
1/8
0.25
1/5
17
Before you can add or subtract fractions what must you have?
Nothing, just add top and bottom
Common Factor
Common Denominator
Common Numerator
18
Calculate: 2 - 10/5 + 4
7
-1
-2
1
19
To find the amount of an item after a 45% decrease in one step multiply by what?
.45
.55
.65
.35
20
True or False? Percent means "per hundred."
False
True
21
Use scrap paper. If x increases by 20% then decreases by 15% what is resulting % of increase?
2%
1.2%
1.08%
1.8%
22
Convert 8% to a decimal.
8
0.8
0.008
0.08
23
True or false: A ratio of 2 to 7 is equal to 6:21?
True
False
24
True or False. When multiplying fractions you can cancel before multiplying.
True
False
25
What ways can we write the ratio of 3 to 2?
3:2
All of the other answers
3/2
3 to 2
26
1/2 = ?
.25
.75
.5
.66666666
