well 5 is an odd number there for 2 numbers can't be added to make odd numbers so 4 is the closest number to five so we use it as the middle number for five :D
Only one.
Fractions are numbers. Sometimes they can be simplified, for example, eight fourths is equal to two.
8 * 1* 2^0 * 4^0=8
Add all of the numbers up, and then divide that result by how many numbers there were, e.g. 1,2,3,4,5. Added up they make 15. As there are five numbers there, you divide 15 by 5, and you get 3. Voila.
7, 42, 63, 98, 105
Eight and four.
It is not possible to add together 5 odd numbers to make an even number.
9
Thirteen, fourteen and nineteen.
You have eight bones that make up your wrist, so I guess your hand, when you include the five metacarpals and the fourteen phalanges.
-3/16 since the answer is negative (the second number is larger) and the problem is subtraction you minus the second number from the first then make the answer negative and you have the answer