(987 + 13)(6 + 4) x 2 x 5 = 1000 x 10 x 10 = 100000
9*9*9 = 729 using the digits 1 to 9 and 2*9 using 10 and another digit. 749 in all.
(9/3 + 6)*1 = 9
The greatest 9-digit number using three different digits is 999888777, formed by using the digits 9, 8, and 7 in descending order. The smallest 9-digit number using three different digits is 100000000, created with the digits 1, 0, and 0. This arrangement ensures that the number starts with 1, followed by the zeros to maintain the smallest value.
If you have to use all four digits - 1349. If you can use them in a sum 9-4-3-1 = 1
(9+1)^(8+7-6-5-4+2+3) = 10^5 = 100,000
11-1-1 = 9
9*9*9 = 729 using the digits 1 to 9 and 2*9 using 10 and another digit. 749 in all.
(9/3 + 6)*1 = 9
The greatest 9-digit number using three different digits is 999888777, formed by using the digits 9, 8, and 7 in descending order. The smallest 9-digit number using three different digits is 100000000, created with the digits 1, 0, and 0. This arrangement ensures that the number starts with 1, followed by the zeros to maintain the smallest value.
Digits are from 1 to 9the sum of the 9 greatest digits is = 9+9+9+9+9+9+9+9+9 = 81the sum of the 9 lowest digits is = 1+1+1+1+1+1+1+1+1+1= 9and so :81 + 9 = 90
To get 900 using the digits 1 to 9 without repetition, you can multiply 9 by 100. This is because 9 times 100 equals 900. By using the digit 9 once and the digit 1 twice, you can achieve the desired result without repeating any digits.
If you have to use all four digits - 1349. If you can use them in a sum 9-4-3-1 = 1
987,654,321
(9+1)^(8+7-6-5-4+2+3) = 10^5 = 100,000
i dont no
1/18
9+3-1