quiz 1

Question 1

A (upside down U) B`

Answer 1

set intersection

-there are 2 of one thing

Question 2

closure of addition

Answer 2

if you add two whole numbers and combine them under addition you get a whole number

Question 3

communativity

Answer 3

the order in which 2 whole numbers combined does not matter

2+1 1+2

Question 4

Identity

Answer 4

a number that doesn’t change the value of the chosen number when added 4+0=4

Question 5

Associativity

Answer 5

(5+2) +3 = 5+ (2+3)

Question 6

inverse identity

Answer 6

a whole number that when combined under addition and subtraction with any given number
4-4=0 .. doesn’t work with addition