Question

What property is shown?

–12 + (27 + 12) = –12 + (12 + 27)

A.
associative property

B.
commutative property

C.
distributive property

D.
opposite of a sum property

Answer 1

Will medal!!!!!!!!!!

Answer 2

I think B

Answer 3

The answer would be commutative because it changes order.

Answer 4

ok thx!

Answer 5

so is the answer for this on B

Which is an example of the commutative property?

A.
–13 + 27 = 27 + (–13)

B.
–21 + (11 + 13) = (–21 + 11) + 13

C.
4(–3 + 5) = 4(–3) + 4 ∙ 5

D.
–(–8 + 3) = 8 + (–3)

Answer 6

commutative: change of order
associative: change of grouping

Answer 7

ok thx!

Answer 8

distributive: a(b + c) = ab + ac

Answer 9

Associative property keeps the order but changes the parentheses.

Answer 10

ok...................

Answer 11

so am i correct???

Answer 12

No its not B. B is associative property

Answer 13

Oh

Answer 14

Commutative property is a change of order.

Here is the general way of stating the commutative property of addition:

a + b = b + a

Answer 15

wit what problem is this for?

Answer 16

*wait

Answer 17

I am talking about the second problem

Answer 18

ok

Answer 19

For the second problem, in B., the 11 and 13 were grouped together on the left side.
On the right side, the -21 and 11 are grouped together. This is a change of grouping, so B is associative, not commutative.

Answer 20

so for communicative u have 2 change the whole thing?

Answer 21

You need to find a statement that is an example of

a + b = b + a, which is commutative.

Answer 22

OH

Answer 23

It is not "communicative." Communicative means you like to communicate.
It is "commutative." Commutative means you change, as in change the order.

Answer 24

ok im confused

for communicative u change the order the opposite

Answer 25

wit my problem is commutative property not communicative

Answer 26

*wait

Answer 27

Commutative:

See if one of the choices shows this:

(first number) + (second number) = (second number) + (first number)

Answer 28

oh i see thx

Answer 29

so A then right?

Answer 30

Commutative property of addition.

(first number) + (second number) = (second number) + (first number)

a + b = b + a

Example:

3 + 5 = 5 + 3

Answer 31

Correct. A is the answer.

Answer 32

k

Answer 33

thx sooooo much

Answer 34

You're welcome.

Answer 35

What value of q makes the statement true?

–(q + 14) = –3 + (–14)

A.
–17

B.
–3

C.
3

D.
17

Answer 36

yw

Answer 37

i now it has 2 be 3 but im not sure if it is -3 or 3

Answer 38

@mathstudent55

Answer 39

@KAKES1967

Answer 40

I think just 3

Answer 41

Let's use the distributive property first on the left side.

–(q + 14) = –3 + (–14)

-q + (-14) = -3 + (-14)

Answer 42

Now you see that -q must equal -3
That means q = 3, not -3

Answer 43

You are correct. q = 3

Answer 44

Yes you are correct but let @mathstudent55 explain to you why its that

Answer 45

thx guys!

Answer 46

yw

Answer 47

ok last thing

Use an addition property to solve for b.

–12 + 16 = 16 + b

A.
–28

B.
–12

C.
4

D.
12

Answer 48

i think B

Answer 49

Correct

Answer 50

thx

Answer 51

You want b alone on the right side.
Since 16 is being added to b, you need to add something to 16 to make it zero.
Additive inverses add to zero.

Answer 52

Its using communative property

Answer 53

Got 100% thx sooooooooo much u guys really helped

Answer 54

Your welcome :P

Answer 55

Good job

Answer 56

If you add -16 to 16 you get zero because -16 is the additive inverse of 16.
The rule with an equation is you must add the same to both sides of the equation.
Since you need to add -16 to the right side, you must add -16 to the left side too.

Answer 57

ok