Operators

Question 1

+

Answer 1

add

2 +4 = 6

Question 2

+

Answer 2

add

2 +4 = 6

Question 3

-

Answer 3

subtract

Question 4

*

Answer 4

multiply

2 *4 = 8

Question 5

**

Answer 5

power of

2**4 = 16

Question 6

/

Answer 6

Divide

2/4.0 == 0.5

Question 7

%

Answer 7

modulus

2 % 4 ==2

Question 8

.

Answer 8

Dot access

“1”.to_i == 1

Question 9

::

Answer 9

Colon access

Module::Class

Question 10

[]

Answer 10

list brackets

[1,2,3]

Question 11

!

Answer 11

not

!true == false

Answer 12

less than

Question 13

>

Answer 13

greater than

Question 14

> =

Answer 14

greater than or equal to

Question 15

<=

Answer 15

less than or equal to

Question 16

<=>

Answer 16

comparison

4 <=> 4 == 0

Question 17

==

Answer 17

equal

4 =4 = true

Question 18

===

Answer 18

Equality

4 ===4 = true

Question 19

!=

Answer 19

not equal

4 != 4 = false

Question 20

&&

Answer 20

Locical and (higher precedence)
true && false = false

Question 21

||

Answer 21

Logical or (higher precedence)
true || flash = true

Question 22

..

Answer 22

range inclusive 
(0..3).to_a = [0,1,2,3]

Question 23

…

Answer 23

Range non inclusive

(0…3).to_a = [0,1,2]

Question 24

@

Answer 24

Object scope

@var ; @@classvar

Question 25

@@

Answer 25

Class scope

@var ; @@classvar

Question 26

$

Answer 26

global scope

$stdin

Question 27

-

Answer 27

subtract

Question 28

*

Answer 28

multiply

2 *4 = 8

Question 29

**

Answer 29

power of

2**4 = 16

Question 30

/

Answer 30

Divide

2/4.0 == 0.5

Question 31

%

Answer 31

modulus

2 % 4 ==2

Question 32

.

Answer 32

Dot access

“1”.to_i == 1

Question 33

::

Answer 33

Colon access

Module::Class

Question 34

[]

Answer 34

list brackets

[1,2,3]

Question 35

!

Answer 35

not

!true == false

Question 36

”

Answer 36

less than

Question 37

>

Answer 37

greater than

Question 38

> =

Answer 38

greater than or equal to

Question 39

<=

Answer 39

less than or equal to

Question 40

<=>

Answer 40

comparison

4 <=> 4 == 0

Question 41

==

Answer 41

equal

4 =4 = true

Question 42

===

Answer 42

Equality

4 ===4 = true

Question 43

!=

Answer 43

not equal

4 != 4 = false

Question 44

&&

Answer 44

Locical and (higher precedence)
true && false = false

Question 45

||

Answer 45

Logical or (higher precedence)
true || flash = true

Question 46

..

Answer 46

range inclusive 
(0..3).to_a = [0,1,2,3]

Question 47

…

Answer 47

Range non inclusive

(0…3).to_a = [0,1,2]

Question 48

@

Answer 48

Object scope

@var ; @@classvar

Question 49

@@

Answer 49

Class scope

@var ; @@classvar

Question 50

$

Answer 50

global scope

$stdin