properties of addition

Question 1

what property of addition is this?
9+5 = 5+9
14 = 14

Answer 1

commutative

Question 2

(4 + 5) + 6 = 4 + (5 + 6) 8+ (3 + 2) = (8+3) +2
9 + 6 = 4 + 11
8 + 5 = 11 + 2
15=15
13 = 13

Answer 2

associative

Question 3

When two numbers are added, the sum is the
same regardless of the order of the addends.

Answer 3

commutative

Question 4

When three or more numbers are added, the sum
is the same regardless of the grouping of the addends.

Answer 4

associative

Question 5

The sum of any number and zero is the original number.

Answer 5

identity

Question 6

8 + 0 = 8 8+ (2-2) = 8 (3-3) +8 = 8

Answer 6

identity

Question 7

7 + 2 = 2+7
4 + 7+2=7+4+2
9 = 9
13 = 13

Answer 7

commutative

Question 8

Changing the order of factors does not
change their product.

Answer 8

commutative

Question 9

Changing the grouping of factors does not change their product.

Answer 9

associative

Question 10

The product of any number and I is the number itself.

Answer 10

identity

Question 11

The product of any number and 0 is 0.

Answer 11

zero