so this is what's known as a combination. a combination is a group where the order does not matter. to solve a combination, you use this equation: n! / (r! *(n-r)!) n is the total number of objects being sorted (8) r is the group you need to sort them into (4) (i know it's 2 groups of 4 but if you solve this for 1 group, the other group is automatically made of the remaining kids) definition of !: a number with a ! means 1*2*3...*that number (so that number multiplied by every number smaller than it all the way to one)
so we put 8 and 4 in this equation: 8! / (4! *(8-4)!) simplify: 8! / *(4! 4!) multiply out: (8*7*6*5*4*3*2*1) / (4*3*2*1 * 4*3*2*1) and put that in your calculator you will get 70 your answer is 70
