Divide 40 by 5 to get 8
so 8 is the middle number.
Then the numbers are 6 7 8 9 10
5+6+7=18
5
nine, ten and eleven. Three consecutive numbers that total thirty
60.
The numbers are -7, -6, -5 and -4.
The numbers are 5, 6, and 7.
4, 5 and 6
The numbers are 4 and 5: 4 + 5 = 9
The numbers are -1, 0, 1, 2 and 3.
The numbers are 37, 38, 39 and 40.
5+6+7=18
5
The numbers are 4, 5 and 6.
The numbers are 5, 7 and 9.
5
The numbers are -5 and -4.
nine, ten and eleven. Three consecutive numbers that total thirty