Question

Shilo is trying to compute the value of 27 + 55 + 13. She adds 27 + 13 to get 40, and then adds on 55.

Which of the following properties is Shilo using?



commutative

distributive

associative

identity

Answer 1

Commutative and Associative

Answer 2

it can only be one

Answer 3

Commutative - means that you can swap numbers and still get the same thing so: a+b = b+a
Distributive - means that when multiplying through a parentheses you must distribute to each term inside the parentheses so: a(b+c) = ab+ac
associative - means that it doesn't matter how you group the numbers, it's the same so: (a+b)+c = a + (b+c)
identity - simply means that they are equal

Answer 4

so associative?

Answer 5

yup

Answer 6

Commutative

Answer 7

Oh yeah. xD

Answer 8

oh ye makes mmore sence thnks

Answer 9

lol