Question

Here are four digits. 8 5 3 7 a) use three of these digits to write down the smallest possible 3-digit number. B) here are four different digits 6 1 9 4 put one of these digits in each box to give the largest possible answer to the subtraction. You must use each digit only once.

Answer 1

357

96 - 14 = 82

Explanation:

Required :

use three of these digits (8 5 3 7) to write down the smallest possible 3-digit number.

To obtain the smallest possible 3 - digit number :

Start with the smallest digit folloqed by the next and so on ; Therefore we have ;

3, then 5, then 7 = 357

The largest possible answer to the subtraction using the digits : 6194

To obtain this :

Right hand side must be as large as possible and the left hand side as small as possible ;

Largest possible 2 - digit number = 96

Smallest possible 2 - digit number = 14

96 - 14 = 82