Fill in the blanks. Then, choose the property of addition you used.

Question

(a) (3 + 9) + blank = 3 + (9 + 6) choose one:
(b) 3 + blank = 3 choose one:
(c) blank + 8 = 8 + 5 choose one:

Answer 1

Let's fill in the blanks and then identify the properties of addition used:

(a) (3 + 9) + 6 = 3 + (9 + 6)
Property used: Associative Property of Addition

(b) 3 + 0 = 3
Property used: Identity Property of Addition

(c) 5 + 8 = 8 + 5
Property used: Commutative Property of Addition

So, the completed answers are: (a) 6, Associative Property of Addition (b) 0, Identity Property of Addition (c) 5, Commutative Property of Addition

Answer 2

next ,
Fill in the blanks. Then, choose the property of addition you used.
(a) (2 + 8) + blank = 2 + (8 + 6) choose one
(b) 6 + 5 = blank + 6

Answer 3

Let's fill in the blanks and identify the properties of addition used:

(a) (2 + 8) + 6 = 2 + (8 + 6)
Property used: Associative Property of Addition

(b) 6 + 5 = 5 + 6
Property used: Commutative Property of Addition

So, the completed answers are: (a) 6, Associative Property of Addition
(b) 5, Commutative Property of Addition