35 + 35
The only way to do that is something like [ 2.5 x 28 ] or [ 3.5 x 20 ]. It can't be done with whole numbers. Here's why: -- The smallest possible 2-digit whole number is 10. -- So the smallest possible product of two 2-digit whole numbers is 100. -- So it's not possible to multiply two 2-digit whole numbers and get 70 .
Not sure what a "didget" is. It is possible to make 18 5-digit numbers.
12,13,14 21,23,24 31,32,34 43,42,41 12 two-digit numbers
There are no three didgit numbers but there are 63 three digit numbers.
You can make 4*3*2/2 = 12 numbers.
A 3 or 4 digit number.
11 and 16.
19 times10,11 (is 2),12,13,14,15,16,17,18,19,21,31,41,51,61,71,81 and 91
70 and 71
2
They are: 2*5*7 = 70
6 2-digit numbers (13/15/35/53/51/31)