Which statement describes the concept of number sense?

a. an ability to solve numerical equations

b. an ability to add, subtract, multiply, and divide

c. an ability to use formulas to calculate a solution

d. an ability to understand numbers and their relationships

Option: D is the correct answer.

( D. an ability to understand numbers and their relationships )

Step-by-step explanation:

Number sense is basically a person's ability to use and understand numbers.

It include the following main points:

Hence, option: D is the correct answer.

( D. an ability to understand numbers and their relationships )

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b