Question

Whole numbers are closed under _____ and under_____.

Answer 1

Answer:

The answers are ADDITION and MULTIPLICATION.

Hope it helps you.....

Answer 2

Answer:

the whole numbers are not closed under subtraction. If a and b are two whole numbers

Step-by-step explanation:

− b = c, then c is not always a whole number. Take a = 7 and b = 5, a − b = 7 − 5 = 2 and b − a = 5 − 7 = −2 (not a whole number)