221
The whole number between 13 and 17 is 15
Meet the Browns - 2009 Meet the Church Board 3-17 was released on: USA: 13 January 2010
n + 20 - 17 + 13 - n = 20 - 17 + 13 = 3 + 13 = 16
17
Themselves and their multiples because 17 and 13 are both prime numbers.
13
17.
221
The number halfway between 13 and 21 can be found by taking the average of the two numbers. Add 13 and 21 together to get 34, then divide by 2 to get 17. Therefore, the number halfway between 13 and 21 is 17.
The are 11, 17 and 24.
17+17+17=51
1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 You add the first number to the last number, the second number to the next to last number and so on...Here's how they all add up... 1+16=17 2+15=17 3+14=17 4+13=17 5+12=17 6+11=17 7+10=17 8+9=17