2178.
2178 x 4 = 8712
Find a four digit number whose digits will be reversed when multiplied by nine?
"If the units digit and the hundreds digit of the number 513 were reversed..." 315 'find the sum of the original number and the new number." 513+315=828
192
The number you are looking for is 12. Reversing the digits gives you 21 75% of 12 is 9 12 + 9 = 21
The last digit is always the estimated digit in a number
Find a four digit number whose digits will be reversed when multiplied by nine?
"If the units digit and the hundreds digit of the number 513 were reversed..." 315 'find the sum of the original number and the new number." 513+315=828
100000 2847239582
47 Impossible problem!
2178
45
5037 = 248 = 3059
81.
The answer is vague but correct . Take any prime number and any other number whose combined digit length is 401 and their product will generate a 400 or a 401 digit number.
192
find the diagonal method of two digit number and three digit number
36