4 boy wants to purchase 445 green marbles. If there are 2 green marbles in each bag, how many b narbles should the boy buy? bags

To find out how many bags of marbles the boys need to buy, you first divide the total number of marbles (445) by the number of marbles in each bag (2). This gives you 445 ÷ 2 = 222.5. Since you can't purchase half a bag, you'd need to round up, meaning they would need to buy 223 bags in total to get at least 445 marbles. Additionally, it’s always a good idea to double-check your calculations! A common mistake in this scenario would be forgetting to round up if the division does not result in a whole number, which can lead to inadequate supplies for the group's needs. So remember, when you're in doubt, always round up for extra assurance!