You know that sum of the first n whole numbers is n(n+1)/2. ( it is the same as the first n natural numbers since the zero does not add anything) So lets say you want the sum of all the whole numbers between 3 and 10. ( I made it easy to illustrate the idea.) The sum of the whole numbers between 0 and 3 is 3(4)/2=6 The sum of the whole numbers between 0 and 10 is 10(11)/2=55 So the sum of the whole numbers between 3 and 10 is the (sum of the whole number between 0 and 10) -(sum of whole numbers between 0 and 3) which is 55-6=49 So in general, for whole numbers m and n with m
There are 90 whole numbers between 10 and 99, inclusive. This is calculated by subtracting the lower limit (10) from the upper limit (99) and then adding one: (99 - 10 + 1 = 90). Thus, the whole numbers range from 10 to 99.
6 and 4
Add them up.
From 10 to 99 (inclusive) there are 90 numbers.18 are evenly divisible by 5.Therefore 72 are not.
The sum of the first 10 odd whole numbers is 100.
The sum of the first five whole numbers is 10.
You know that sum of the first n whole numbers is n(n+1)/2. ( it is the same as the first n natural numbers since the zero does not add anything) So lets say you want the sum of all the whole numbers between 3 and 10. ( I made it easy to illustrate the idea.) The sum of the whole numbers between 0 and 3 is 3(4)/2=6 The sum of the whole numbers between 0 and 10 is 10(11)/2=55 So the sum of the whole numbers between 3 and 10 is the (sum of the whole number between 0 and 10) -(sum of whole numbers between 0 and 3) which is 55-6=49 So in general, for whole numbers m and n with m
145
There are 90 whole numbers between 10 and 99, inclusive. This is calculated by subtracting the lower limit (10) from the upper limit (99) and then adding one: (99 - 10 + 1 = 90). Thus, the whole numbers range from 10 to 99.
Add them up.
6 and 4
From 10 to 99 (inclusive) there are 90 numbers.18 are evenly divisible by 5.Therefore 72 are not.
Its all of the whole numbers from n to and including (n + 14), where n is any whole number from 10 to 85 inclusive.
9 + 10 + 11 + 12 = 42
Yes. The sum of 1 to 10 (inclusive) is 55.
6, 7, 8, and 9, exclusive. 5, 6, 7, 8, 9, and 10, inclusive.