Question

Which sets of numbers are closed under subtraction?

Choose all answers that are correct.

A.
whole numbers

B.
negative integers

C.
integers

D.
rational numbers

Answer 1

@ganeshie8 @sammixboo @somy

Answer 2

Do you always get a whole number when you subtract two whole numbers ?

Answer 3

yes

Answer 4

sure ?

Answer 5

a whole number can be negative right?

Answer 6

nope

Answer 7

http://image.tutorvista.com/content/feed/tvcs/whole20numbers.PNG

Answer 8

oh then no :/ *derp*

Answer 9

So we say whole numbers are NOT closed under subtraction
check next option

Answer 10

Do you always get a negative integer when you subtract two negative integers ?

Answer 11

@ganeshie8 yes

Answer 12

think again

(-1) - (-2) = ?

Answer 13

then no :/

Answer 14

whats an interger?

Answer 15

http://hotmath.com/hotmath_help/topics/integers/integers-1.gif

Answer 16

yes

Answer 17

whats a rational number?

Answer 18

Correct! subtracting any two integers always gives you another integer

Answer 19

http://image.mathcaptain.com/cms/images/39/rational-numbers-on-a-number-line.JPG

Answer 20

yes

Answer 21

Right, only last two options are closed under subtraction

Answer 22

whats your pic of?

Answer 23

lol

Answer 24

@ganeshie8 what is your pic?

Answer 25

https://www.youtube.com/watch?v=WYp3e0l0NfA