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DAT > DAT Quantitative reasoning > Flashcards

DAT Quantitative reasoning Flashcards

1
Q

picking numbers strategy

A
  • use for variables.
  • percents (use 100)
  • fractions (use common denominator)
  • number property questions (pick a permissible number)
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2
Q

guessing and checking

A

put in answer choice B or D to determine higher or lower

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3
Q

Quantity A and B question strategy

A
  • STOP: analyze the info
  • THINk: think if you can simplify it
  • match: match the A and B to be as close together
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4
Q

Quantity A and B question strategy

OF VARIABLES

A

TRY TO find at least two different relationships

** x can be any number

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5
Q

Data sufficiency Strategy

A

Determine if value or yes or no.

  • simplify
  • identify what is needed to answer the question
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6
Q

*** avoid reading answer choices of stuff you know!!!

A

12 TEN

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7
Q

Eliminate answer options as well

A

** data sufficiency

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8
Q

Value questions

A

narrow it down to one variable. if not, its insufficient or sufficient BASED ON ANSWER CHOICE

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9
Q

yes no questions

A

try to find Always yes or Always no to find sufficiency

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10
Q

** data sufficiency statements

A

ARE ALWAYS true

- if they contradict each other, then YOU MESSED UP

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11
Q

N variables must have

A

N equations usually.

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12
Q

*** think about sufficiency NOT

A

calculation

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13
Q

Picking numbers and data sufficiency

A

make sure to use TWO different numbers and it should produce a different answer (choose negative or fraction)

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14
Q

Data interpretation

A

Slow down and really think. look at axis and think about calculation required

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15
Q

real number

A

all numbers on the number line

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16
Q

0 is an odd or even?

A

even

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17
Q

when doing proportions, calculate based on object/ total, not trying to find number of total of anything

A

YEah

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18
Q

1/8 is

A

.125

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19
Q

1/20 is

A

5 %

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20
Q

decoding “What percent of… is..”

A

what follows the OF is the WHOLE and what follows Is or Are is the part

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21
Q

an item is 30% increase means

A

that its 130% higher

  • must add 30 to 100%
  • if subtraction, its 70%
22
Q

F to C equation

A

5/9(F - 32)

23
Q

1 mile to ft

A

5280 ft

24
Q

I foot to inch

A

12 inch

25
Q

1 yard to feet

A

3 ft

26
Q

1m to yard

A

1.1 yard

27
Q

1 kg to lbs

A

2.2 lbs

28
Q

1 lb to g

A

454 g

29
Q

1 lb to ounce

A

16 ounces

30
Q

1 ounce to ml

A

29 is ml

31
Q

1 km to mile

A

0.6 mile

32
Q

log (s times t)

A

log s plus log t

33
Q

log (s over t)

A

log s - log t

34
Q

when given an exponent equation, REMEMBER TO RAISE

A

TO the opposite power to get rid of it!!!

35
Q

SAY THE quadratic equation

A

-b +/ b squared - 4 ac / 2a

36
Q

careful with algebra!!!

A

YES

37
Q

when it says how many

A

immediately go to combinations

38
Q

exterior angles of a triangle

A

add up to 360

39
Q

name two pythagorean triples

A

3,4,5

5,12,13

40
Q

45 degree triangle

A

1:1:root 2

41
Q

30 60 triangle

A

1: root 3: 2

42
Q

rhombus, parallelogram area

A

area of base times height where height is straight up

43
Q

length of an arc

A

(n/360) times 2 pi r

44
Q

area of a sector

A

(n/360) times pi r squared

45
Q

SA of a sphere

A

4 pi r squared

46
Q

volume of sphere

A

4/3 pi r cubed

47
Q

distance formula

A

subtract x and y, square and ADD then square root

48
Q

graphing inequalities

A

first graph eqn, then look at sign to see if area is above or below

49
Q

area of equilateral triangle

A

side squared times root 3 divided by 4

50
Q

trapezoid area

A

base 1 + base 2/ divided by 2 times height

** no need to know the triangle side

51
Q

evaluating using coordinate plane

A

draw the triangle, PLOT IT and use those to find the value

- DONt subtract or add anything. the value is just that

DAT (8 decks)

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