Jack sews 3 shirts for each of his 3 kids. He sews 7 buttons in each shirt. How many buttons must Jack use for all the shirts? Let's answer step by step:
User
The total number of shirts for all his kids is 3 * 3 = 9 shirts. The total number of needed buttons is 9 * 7 = 63 buttons. The answer: 63.
Assistant