Question

Which expression is the best estimate of the product of 7/8 and 8 1/10?

A. 0x8

B. 1x10

C. 7x8

D. 1x8

Answer 1

Option D -
`(7)/(8)* 8(1)/(10)\approx 1* 8`

Explanation:

To find : Which expression is the best estimate of the product of
`(7)/(8)` and
`8(1)/(10)`?

Solution :

We estimate the number individually,

`(7)/(8)=0.875`

Estimate the number we get 0.875≈1.

`8(1)/(10)=(81)/(10)`

`8(1)/(10)=8.1`

Estimate the number we get 8.1≈8.

The product of
`(7)/(8)` and
`8(1)/(10)` is

`(7)/(8)* 8(1)/(10)\approx 1* 8`

Therefore, option D is correct.