Question

The value of 16.1² - 8.9² is​

Answer 1

Answer:

180

Step-by-step explanation:

Using a² - b² = ( a + b )( a - b )

16.1² - 8.9² = ( 16.1 + 8.9 )( 16.1 - 8.9 )

= 25 × 7.2 = 180

Answer 2

• We have to evaluate the above expression by using the given data.

           Given data:- $16.1^{2} -8.9^{2} .$

           To find:- Value of given expression.

           Solution:-

• We know that Subtraction means taking away some value from another value.

• Subtraction is denoted by (-).

• Properties of subtraction are as follows:-

1. Subtracting a number from itself.
2. Subtracting 0 from a number.
3. Order property.
4. Subtraction of 1.

         Therefore we get,

           $16.1^{2} -8.9^{2} \\=259.21-79.21\\=180.$

     Hence we will get the value $180.$