Cody saves all his nickles. Today he is getting them out of his piggy bank and wrapping them to take to the bank. He finds he ha
s 360 nickels. It takes 40 Nicole's to fill each paper wrapper and make a roll. How many wrappers does he need? Explain how you solved this problem and how you know your answer is correct.
350 divided by 40 equals 8.75. He needs 9 because he fills 8 completely but has some left over. He can't just not fill them, so you would need an extra. 9 is the answer.
3rd grader explanation: Explain that Cody wants to divide 360 into __ groups of 40. Use an illustration of separating things into equal groups (you can simply use separating 6 objects into equal groups of 2). Explain that subtraction, multiplication, or addition will not help. Tell him/her to use division. Although 360 and 40 are large numbers, explain that the 0's can be removed into 4 and 36. 36 / 4 = 9 Since the answer is 9, Cody needs 9 wrappers.