2.3 Using Variables

Question 1

Identity property of multiplication

Answer 1

For every real number n, 1×n=1 n×1=1

Question 2

Multiplication property of zero

Answer 2

For every real number n, 0×n=0

Question 3

Multiplication property of -1

Answer 3

For every real number n -1×n=-n

Question 4

Multiplying numbers with the same signs

Answer 4

The product of two positive numbers or two negative numbers are positive

Question 5

Multiplying numbers with different signs

Answer 5

The product of a positive number and a negative number or a negative and a positive equals negative