Question

What Is the Property of 16 + 31 =31 + 16?
What Is the Property of (3 x 10) x 8 = 3 x (10 x 8)
What Is the Property of 21 x 9 = 9 x 21?
What is the Property of 0 +91 = 91?
Please Answer I dont Understand Thank you If you did.

Answer 1

the first is comunative property the last is zero property the second is associative propertyand the third is comunative property

Answer 2

Answer:

A) What Is the Property of 16 + 31 =31 + 16?

This is the commutative property of the addition, it says that the is the same to ad A plus B than B plus A:

A + B = B + A

B) What Is the Property of (3 x 10) x 8 = 3 x (10 x 8)

This is the associative property of the multiplication, it says that does not matter what multiplication you solve first:

(A x B) x C = A x ( B x C)

C) What Is the Property of 21 x 9 = 9 x 21?

This is the commutative property of the multiplication, this says that the order of the factors does not affect the product:

A*B = B*A

D) What is the Property of 0 +91 = 91?

This is the existence of the zero: This property says that there exists a number X such for every number A we have that:

X + A = A

so X is a neutral term in the addition, and X = 0