-8
648-351=297 [Shereen BSJ]
639 - 452 = 187
there are 899 whole numbers that have three digits.
Assuming you mean permutations of three digits, then the set of numbers that can be made with these digits is: 345 354 435 453 534 543 There are six possible permutations of three numbers.
There are 900 three-digit numbers.
Your answer is, depending on the order of your subtraction, either positive or negative 198
Three digits.
There are a variety of three digits that add up to 25. Examples include 9, 8 and 8.
Yes it matters. Subtraction is not commutative. Example: 5-2 = 3 (positive three), but 2-5 = -3 (negative three)
depends on your answer
757
100
Yes.