Max has 8 children and each of his children has the same number of children as he does except for 2 who have 5 children each. How many grandchildren does he have? Think carefully first, then make a decision:
Out of his 8 children, 2 have only 5 children so the rest who have 8 ( the same number as him) are 8 - 2 = 6. 6 of Max's children have 8 children each for a total of 6 * 8 = 48 grandchildren. 2 of Max's children have 5 children each for a total of 5 * 2 = 10 grandchildren. In total he has 48 + 10 = 58 grandchildren. So, the answer is 58.