What To Do With Remainders By the end

What To Do With Remainders By the end of this lesson, you will know four different ways to handle a remainder in real life.

My division problem has a remainder. Now what do I do? Problems with a remainder require you to be extra thoughtful. This activity will teach you how to deal with remainders in real life.

Interpreting Remainders: Once you’ve got a remainder, think of DIRT: • • Drop It/Ignore It It's your answer (use the remainder) Round Up (add one more) Keep It (along with your quotient)

Drop or Ignore the Remainder Example: You go to the pizza store with $7. Its costs $2 to buy a slice of pizza. How many slices can you buy? $2 a slice = 3 ½ slices *Think: What does the ½ represent? The ½ is the remainder. BUT I can’t buy half of a slice, so I drop (or ignore) the remainder because I can only buy 3 slices. It doesn’t matter that you have money left over. If it’s not enough to buy another slice, you must ignore it. So…You will buy 3 slices of pizza.

It’s your Answer! Use the Remainder. The students in Mr. Diegnan’s class are forming groups of 4 for a math game. There are 29 students in his class. How many students will be left after groups of 4 are formed? 29 ÷ 4 = 7 R 1 *What does the 7 represent? The number of groups that are formed. *What does the 1 represent? The number of students who will be left after the groups are formed. In order to answer the question, I need to USE the remainder. So…There will be 1 student left after groups are formed.

Round Up Mrs. Pascarella is buying cupcakes for her daughter’s birthday party. The cupcakes come in boxes of 4. There are 29 children attending. How many boxes of cupcakes does Mrs. Pascarella need to buy if she wants to give each child at the party a cupcake? 29 ÷ 4 = 7 R 1 *What does the 7 represent? At least 7 boxes of cupcakes will need to be ordered. *What does the 1 represent? The number of children who would not get a cupcake if only 7 boxes of cupcakes are ordered. **I need to ROUND UP so that everyone gets a cupcake. Instead of 7 boxes of cupcakes, she needs to buy 8 boxes. 8 X 4 = 32, so 8 boxes will be enough cupcakes

Keep It Ms. Dolan has a long piece of paper. The paper is 29 inches long and she must use the entire piece of paper. She wants to cut the piece of paper into 4 equal pieces. How long is each piece after it is cut? 29 ÷ 4 = 7 R 1 *What does the 7 represent? Each piece will need to be at least 7 inches long. *What does the 1 represent? 1 inch of paper. *In order to get 7 equal pieces AND use the entire piece of paper, we need to cut the left over 1 -inch piece of paper into 4 equal parts (each is ¼ inch long). So… each person gets 7 ¼ inches of paper. Notice the quotient AND remainder are used. *Actual answer required ex: conversions, age/weight

Let’s Try Some Together… Boat Ride At an amusement park, 16 people are waiting in line for a water ride. Each boat holds 6 people. How many boats will be completely filled? Which of the remainder strategies did you use?

Apples Miss Eddy is giving out 13 apples to 4 of her students. She wants each student to get the same amount of apple. She also wants no apple pieces left over. How much apple should each student get? Which of the remainder strategies did you use?

Trading Cards Thirty-three trading cards are to be placed in plastic sheets. Each sheet can display 8 cards. How many pages are needed to protect all the cards? Which of the remainder strategies did you use?

Field Trip Twenty-six students are going on a field trip, and parents have offered to drive. If each of the 8 cars holds 3 kids, how many kids will not have a ride? Which of the remainder strategies did you use?

Can you name the four ways you can handle remainders? • Drop It/Ignore It • It's your answer (use the remainder) • Round Up • Keep It (along with your quotient)