To find 9+6, a student says she thinks 9+6 as 9t(1+5) (9+1)+5 10+5 15 what prope

Question

To find 9+6, a student says she thinks 9+6 as 9t(1+5) (9+1)+5 10+5 15 what property or properties is she using? Select the correct answer below. Co 2 pt) a) First she separated 6 into 1 and 5. Then she used the commutative property to get the 9 and 1 together. Next, she added the 9 and 1. Finally she added 10 and b) First she used the commutative property to separate 6into 1 and 5. Then she used the associative property to get the 9 and 1 together. Next, she added the 9 and 1. Finally she added 10 and 5 c) First she separated 6into land 5 with the identity property of addition. Then I she used the associative property to get the 9 and 1 together. Next, she added the 9 and 1. Finally she added 10 and 5 d) First she separated 6into 1 and 5. Then she used the associative property to get the 9 and 1 together. Next, she added the 9 and 1. Finally she added 10 and 5. 7. Suppose a student argued that o-o because every number divided by itself is 1 How would you help that student? Co 25 pt) 8. Complete the problem page number 163, assessment 3-5A G problem Co-25 pts) 9. what are the three types of division model? Explain briefly each of them with an example for each. Co 5 pts)

Explanation / Answer

6.

Identity property

a + 0 = a

Associative property:

a + (b + c) = (a + b) + c

Commutative property:

a + b = b + a

Using these rules

corecct option will be D.

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