Math & Quant

Question 1

Rounding X Truncation

Answer 1

• Rounding: Arredondamento para as casas mais próximas para cima ou para baixo
• Truncation: Apenas desconsidera o resto

Question 2

1^2

Answer 2

1

Question 3

2^2

Answer 3

4

Question 4

3^2

Answer 4

9

Question 5

4^2

Answer 5

16

Question 6

5^2

Answer 6

25

Question 7

6^2

Answer 7

36

Question 8

7^2

Answer 8

49

Question 9

8^2

Answer 9

64

Question 10

10^2

Answer 10

100

Question 11

9^2

Answer 11

81

Question 12

11^2

Answer 12

121

Question 13

12^2

Answer 13

144

Question 14

13^2

Answer 14

169

Question 15

14^2

Answer 15

196

Question 16

15^2

Answer 16

225

Question 17

16^2

Answer 17

256

Question 18

17^2

Answer 18

289

Question 19

18^2

Answer 19

324

Question 20

19^2

Answer 20

361

Question 21

20^2

Answer 21

400

Question 22

2^0

Answer 22

1

Question 23

2^1

Answer 23

2

Question 24

2^3

Answer 24

8

Question 25

2^4

Answer 25

16

Question 26

2^5

Answer 26

32

Question 27

2^6

Answer 27

64

Question 28

2^7

Answer 28

128

Question 29

2^8

Answer 29

256

Question 30

2^9

Answer 30

512

Question 31

2^10

Answer 31

1024

Question 32

3^3

Answer 32

27

Question 33

3^4

Answer 33

81

Question 34

3^5

Answer 34

243

Question 35

3^6

Answer 35

729

Question 36

3^7

Answer 36

2187

Question 37

5^3

Answer 37

125

Question 38

5^4

Answer 38

625

Question 39

5^5

Answer 39

3125

Question 40

6^3

Answer 40

216

Question 41

7^3

Answer 41

343

Question 42

7^4

Answer 42

2401

Question 43

5/4 equals to:

Answer 43

1.25 or 125%

Question 44

7/4 equals to:

Answer 44

1.75 or 175%

Question 45

1/8 equals to:

Answer 45

0.125 or 12.5%

Question 46

3/8 equals to:

Answer 46

0.375 or 37.5%

Question 47

5/8 equals to:

Answer 47

0.625 or 62.5%

Question 48

2/5 equals to:

Answer 48

0.4 or 40%

Question 49

Converting a Fraction to a Decimal

Answer 49

Divide the Numerator by the Denominator.

Ex: 1/4 equals to 1 divided by 4 = 0.25

Question 50

Converting Fraction to a Percent

Answer 50

Divide the Numerator by the Denominator and move the decimal two places to the Right

Ex: 1/4 equals to 1 divided by 4 = 0.25 then two places to the right = 25%

Question 51

Converting Decimal to Fraction

Answer 51

Use the place value of the last digit in the decimal as the Denominator and put the decimal’s digits in the numerator and then Simplify

Ex: 0.375 equals to 375/1000 and then simplify to 3/8

Question 52

Converting Decimal to Percent

Answer 52

Move the decimal point two places to the right

Ex: 0.375 = 37.5%

Question 53

Converting Percent to Fraction

Answer 53

Use the digits of the percent for the Numerator and 100 for the denominator and then simplify

Ex: 65% equals to 65/100 then 13/20

Question 54

Prime Number

Answer 54

Números Primos ; Divisíveis por 1 e eles mesmos

Question 55

Whole Number

Answer 55

Números Inteiros

Question 56

Digits

Answer 56

They are 10 Symbols (0,1…9)

Question 57

Inequalities

Answer 57

Expressões que usam o Sinal “<” e “>”

Question 58

Equations

Answer 58

Expressões que sempre usam o sinal de igual “=”

Question 59

When to use DISTRIBUTION

Answer 59

When the operations inside the parentheses are “+” or “-“

Question 60

Perfect Square

Answer 60

É o ao quadrado de um número inteiro.

Ex: 25 é o Perfect Square de 5.

Question 61

Roots

Answer 61

Roots undo exponents.

The most common is the Square Root.

When the text is talking about a “radical” it’s talking about the Root Symbol

Question 62

√2

Answer 62

~1.4

Question 63

√3

Answer 63

~1.7

Question 64

Coefficient

Answer 64

When we have variables such as “3x” the “3” is the COEFFICIENT of x

Question 65

PEMDAS

Answer 65

Order which you solve a expression

Parentheses
Exponents
Multiplication / Division
Addition / Subtraction

Question 66

The use of the word Quantity

Answer 66

Indica que os valores estão dentro de um parênteses

Question 67

Nome da Primeira Casa Após o Ponto

Answer 67

Casa dos TENTHS –> 0.2

Question 68

Sinais Iguais dá….

Answer 68

MAIS (+)

+ x + = + ; - x - = +

Question 69

Opposite Numbers

Answer 69

Números Opostos

Ex: 3 e -3

Question 70

Reciprocal Numbers

Answer 70

Números Inversos

Ex: 7 e 1/7

Question 71

Slope

Answer 71

Inclinação da Reta

Question 72

Rhombus

Answer 72

Losango

Question 73

NEW YORK Technique

Answer 73

Quando um Statement pode ser YES or NO……ITS NOT SUFFICIENT

Question 74

Comparing Fractions: The Double-Cross

Answer 74

Set up the fractions next to each other and then multiply the numbers across the arrows.

7/9 and 4/5 –> We would multiply 7x5 and 9x4. Then we would multiply 9 x 5 to get the denominator

Question 75

Multiple Ratios: Make a Common Term

Answer 75

If we want to find a certain ratio we just need to put all of them in a common term

A : B : C

3 : 2: ?

5: ? : 4

We just need to multiply the know terms and get all of them in the same common term. Here we can use 15 for A. So we are using 5x in the first row and 3x in the second

15: 10 : 12

Question 76

4 Words of %

Answer 76

Percernt = Divided by 100

OF = Multiply

Is = Equals to (=)

WHAT = unkown value (x)

Question 77

Percent Change Formula

Answer 77

Percent Change = Change in Value/Original Value

Question 78

New Percent Formula

Answer 78

New Percent = New Value/Original Value

Question 79

Division by 3 Rule

Answer 79

if the sum of the digits can be divided by 3 then the number can also be divided by 3

EX: 147 -> 1 + 4 + 7 = 12

Question 80

Factors

Answer 80

São os números pelos quais um outro determinado número é divisível “evenly”

Factors de 6: 1, 2, 3 e 6

Question 81

Number is a Divisor of another

Answer 81

On the GMAT when a question states that it means it is an evenly divison

Question 82

Prime Number

Answer 82

Only divisible by 1 and itself

Question 83

Prime Factor

Answer 83

É quando nós quebramos um número em sua Prime Factor Tree para chegar aos menores números primos que multiplicados dão aquele número

Ex: 60 -> 4x15 -> 2x2x3x5

Logo, temos que os Prime Factors de 60 são 2,2,3 e 5

Question 84

NEGATIVE NUMBER POWERED TO AN EVEN NUMBER

Answer 84

Equals to a POSITIVE NUMBER

Ex: -3^2 = 9

Question 85

NEGATIVE NUMBER POWERED TO AN ODD NUMBER

Answer 85

Equals to a NEGATIVE NUMBER

Ex: -3^3 = -27

Question 86

DIVIDE TERMS WITH THE SAME BASE: SUBTRACT THE EXPONENTS

Answer 86

If we have an expression which is dividing a two powered numbers by the same base, we can SUBTRACT the exponents

Ex: A^5 / A^3 = A^2

Question 87

Multiply terms with the same base: add the exponents

Answer 87

If we have an expression which is multiplying a two powered numbers by the same base, we can ADD the exponents

Ex: A^2 x A^3 = A^5

Question 88

Anything to the power of ZERO

Answer 88

Equals 1

Question 89

Negative Power

Answer 89

Equals to 1 over a positive number

Ex: a^-2 –> 1/a^2

Question 90

(a^2)^4

Answer 90

Multiply the exponents

Ex: a^8

Question 91

If you Square-Root a Square number

Answer 91

You get the original number

Question 92

The Square-root of a number between 0 and 1 is

Answer 92

Greater than the original number