No. Take 12 for example. 1+2=3 but 1x2 doesn't equal 3, it equals 2.
They are the same because they are both multiplication. They also can be the same if the two digit number times by the one digit number equals a three digit number. They are different because the 3 digits number will obviously produce a higher product.
3333
If repeated digits are allowed, then the largest 12-digit number is 999,999,999,999 .If repeated digits are not allowed, then the largest 12-digit number is 989,898,989,898 .If the same digit can't be used more than once, then the largest possible number has only10 digits. The number is 9,876,543,210 .
98
10,234
44? ? ?
No.
The greatest 3 digit number is 999, and all three digits are the same.
-8
1002345678
1.111
100000000