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HESI A2 > Math > Flashcards

Math Flashcards

1
Q 
roman numeral (RM)
L=
A

50

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2
Q

(RM) C=

A

100

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3
Q

(RM) D=

A

500

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4
Q

(RM) M=

A

1000

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5
Q

(+)+(-)=

A

sign of the larger number

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6
Q

(-)+(-)=

A

NEGATIVE #

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7
Q

(-)x(-)=

A

POSITIVE #

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8
Q

(-)x(+)=

A

NEGATIVE #

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9
Q

(-) divided by (-)=

A

POSITIVE #

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10
Q

(-) divided by (+)=

A

NEGATIVE #

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11
Q

-10x47=

A

-470

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12
Q

-65+-32

A

-97

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13
Q

-7x4=

A

-28

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14
Q

what is the greatest common factor (GCF)?

A

a set of numbers is the largest number that can evenly divide into all of the numbers in the set

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15
Q

what is the GCF of 24 and 18?

A

factors of 24:1 ,2,3,4,6,8,12,24
factors of 18: 1,2,3,6,9,18
The GCF is 6

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16
Q

what is the GCF of 20 and 16?

A

the GCF is 4

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17
Q

1yd=

A

3ft

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18
Q

1gal=

A

16cups

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19
Q

12in=

A

1ft

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20
Q

1meter =

A

1000mm

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21
Q

1kg=

A

1000g

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22
Q

1L=

A

1000ml

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23
Q

1cm=

A

10mm

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24
Q

dividing a decimal by a decimal

5.76 divided by 0.3=

A

19.2

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25
Q

dividing a decimal by a decimal

86.4 divided by 0.12=

A

720

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26
Q

dividing a decimal by a decimal

23.6 divided by 0.04=

A

590

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27
Q

dividing a decimal by a whole number

4.85 divided by 5=

A

0.97

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28
Q

dividing a decimal by a whole number

95.1 divided by 6=

A

15.85

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29
Q

simplify the fraction 121/77

A

they both share a common factor of 11. so id we didide each number by 11 you can simplify the fraction.
11/7

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30
Q

simplify the fraction 3/12

A

1/4

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31
Q

simplify the fraction 14/49

A

2/7

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32
Q

improper fractions into mixed numbers

17/3

A

5 2/3

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33
Q

improper fractions into mixed numbers

36/6

A

6

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34
Q

improper fractions into mixed numbers

51/9

A

5 6/9

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35
Q

multiplying fractions

6 x 1/3

A

2

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36
Q

multiplying fractions

12x 3/5

A

7 1/5

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37
Q

multiplying fractions

3/4 x 2/3

A

1/2

38
Q

multiplying fractions

1/7 x 2/3

A

2/21

39
Q

whats an important thing to remember when your dividing fractions?

A

KEEP, SWITCH, FLIP

keep the first fractions, switch the dividing to multiply, then flip the second fractions

40
Q 
dividing fractions (keep,switch, flip)
1/2 divided by 2/5
A

1 1/4

41
Q

dividing fractions

2/8 divided by 1/4

A

1

42
Q

dividing fraction by mixed number

1/4 divided by 2 2/5

A

5/48

43
Q

dividing fraction by mixed number

5/8 divided by 6 2/3

A

3/32

44
Q

dividing fraction by mixed number

2/5 divided by 1 1/5

A

1/3

45
Q

multiplying mixed numbers by fractions

3 1/4 x 2/5

A

1 3/10

46
Q

multiplying mixed numbers by fractions

5 2/3 x 3/7

A

2 3/7

47
Q

multiplying mixed numbers by fractions

1/4 x 8 1/2

A

17/8

48
Q

adding fractions

3/8 + 2/12

A

13/24

49
Q

adding fractions

2/3 + 1/6

A

5/6

50
Q

adding fractions

1/6 + 5/9

A

13/18

51
Q

subtracting fractions

10/12 - 5/8

A

5/24

52
Q

subtracting fractions

2/3 - 1/5

A

7/15

53
Q

subtracting fractions

2 1/3 - 3/2

A

5/6

54
Q

converting fractions into decimals

9/25

A

.36

55
Q

converting fractions into decimals

3/16

A

.1875

56
Q

converting decimals into fractions

.45

A

9/20

57
Q

what is the equation used for proportions?

A

a/b= c/d

58
Q

what do you do with proportions?

A

cross multiply

59
Q

percentages

part/whole =

A

percent

60
Q

percentages

whole x percent =

A

part

61
Q

percentages

part/percent=

A

whole

62
Q

percent change

amount of change/original amount=

A

percent change

63
Q

percent change

original amount x percent change =

A

amount of change

64
Q

percent change

amount of change/ percent change =

A

original amount

65
Q

probabilities

desired outcomes/ total possible outcomes =

A

probability

66
Q

probabilities

probability x total possible outcomes =

A

desired outcomes

67
Q

probabilities

desired outcomes/ probability =

A

total possible outcomes

68
Q

what are the KEY words for ADDITION?

A

added, combined, increased by, in all, total, perimeter, sum, & more than

69
Q

what are the KEY words for SUBTRACTION?

A

how much more, less than, fewer than, fewer than, exceeds, difference, & decreased

70
Q

what are the KEY words for MUTIPLICATION?

A

of, times, area, & product

71
Q

what are the KEY words for DIVISION?

A

distribute, share, average, per, out of, percent, & quotient

72
Q

what are the KEY words for EQUALS?

A

is, was, are, amounts to, & were

73
Q

distant word porblems

d=

A

rt

74
Q

work problems

rate x time =

A

work

75
Q

how do you find the MEAN?

A

total all the terms together then divide by the number of terms

76
Q

find the mean of 24, 27, and 18

A

69 divided by 3 = 45

77
Q

what is the MEDIAN?

A

the middle number in a given set

78
Q

how do you find the MEDIAN?

A

put the number in numerical order & the middle number will bee the median

79
Q

what is the median of 24, 27, 18?

A

18, 24, 27

its 24

80
Q

what do you do if their are two MEDIANS?

A

you add them together then you divide by 2

81
Q

what is the median of 24, 27, 18, 19?

A

18, 19, 24, 27

19+24 divided by 2 will be 21.5

82
Q

what is the MODE?

A

the number which occurs most frequently within a given set

83
Q

what is the mode of 2, 5 , 4, 4, 3, 2, 8, 9, 2, 7, 2, 2

A

2

84
Q

what is the AREA formula for CIRCLE?

A

A = π r2

85
Q

what is the PERIMETER formula for CIRCLE?

A

C=2 πr = πd

86
Q

what is the AREA formula for TRIANGLE?

A

A=b x h divided by 2

87
Q

what is the PERIMETER formula for TRIANGLE?

A

p= s1 + s2 + s3

88
Q

what is the AREA formula for SQUARE?

A

A=s2

89
Q

what is the PERIMETER formula for SQUARE?

A

p=4s

90
Q

what is the AREA formula for RECTANGLE?

A

A= l x w

91
Q

what is the PERIMETER formula for RECTANGLE?

A

p=2l + 2w

92
Q

what is the pythagorean theorem formula?

A

a2 + b2=​c2

HESI A2 (5 decks)

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