9. 92 = 81. The difference of the digits 8 and 1 is 7.
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Two digit no and the sum of the two digit give 12 39,48,57,66,75,84,93 are the possible two digit no whose sum is 12. Example 3+9=12;4+8=12...... Difference of the two digit no is 2 that is 57and75. because difference of 5 and 7 is 2. Next, unit digit to be greater than tens digit. So 57 is ans because 7 is in unit digit which is greater than tens digit.
The face value of a digit is the value of the digit itself, regardless of its position in the number. In the numeral 574873, the face value of the digit 7 is 7. The difference between the face value of 7 and its place value in this number is 0, as the place value of 7 in this number is also 7 (tens of thousands place).
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what is the difference between the largest 8-digit number and the smallest 6-digit number
4*4=16,1+6=7 5*5=25,2+5=7 6*6=36,3+6=9 7*7=49,4+9=13 8*8=64,6+4=10 9*9=81,8+1=9 so 9 square is 81 sum of these two digit is 9. 9 square is answer.