Question

Which equations show that the set of whole numbers is not closed under subtraction?



Choose all answers that are correct.









A.

1 – (–2) = 3








B.

1 – 2 = –1








C.

2 – 0 = 2








D.

2 – 4 = –2

Answer 1

Plz help me!!

Answer 2

You get a medal

Answer 3

Plz help

Answer 4

you will need to define the terms 'whole number' and 'closed'

Answer 5

Whole numbers
The numbers {0, 1, 2, 3, ...} etc.

There is no fractional or decimal part. And no negatives.

Example: 5, 49 and 980 are all whole numbers.