1. Use the “Adding Up” Strategy
NUMBER TALK
100 – 74
Use the “Adding Up” Strategy

2. Investigate and Interpret Remainders
Lesson 2

3. Let’s Solve and Discuss…
You have 5 cookies that you want to share with 2 friends.  How many cookies do you give each friend? 
First, draw 2 groups…
What are you going to do with that leftover cookie?
EAT IT!! …or cut it in half to share! 
Then, make 5 counters…
5 ÷ 2 cannot be shared equally into groups, we will have cookies left over.
Start by sharing the cookies one at a time into each group.
Now, I have one cookie leftover
So 5 ÷ 2 = 2 with 1 left over, or remaining. So 2 remainder 1 (2 R 1)

4. Today…
We are going to learn the strategy equal groups, and decide what to do with the left overs.

5. Let’s Try…
I want to share 63 star bucks equally with 5 students. What is the greatest amount of star bucks can each student get?
63 ÷ 5 = _____
12 R 3
I can “Think Multiplication” by saying 5 x 12 = 60, with 3 leftover.
So, each student can get 12 star bucks each.
WHAT IF ** the problem said: I want to share 63 starbucks
equally with 5 students. How many starbucks do I have left?
3 

6. Let’s Practice…
I have 80 candy-sticks that I want to share equally with 7 friends. How many candy-sticks will be leftover?
Write the equation.
 80 ÷ 7 = ______
11 R 3
Think Multiplication.
I know 7 x 10 gets me 70, but I need 80, so I am
going to keep multiplying.
7 x 11 = 77, only 3 more numbers to 80.
7 x 11 is the closest I can get to 80 without going over.
80 – 77 = 3
So, each person gets 11 candy sticks and there will be 3 leftover.

7. Determine the missing amount…
There are 28 students going on a field trip to the Kravis Center.  Each car only holds 5 students.  How many more students can go on the field trip to only have full cars?
First, write my equation: 28 ÷ 5 = ____
5 r 3 (3 students leftover)
Then, think multiplication to solve: 28 ÷ 5 = ____ 5 x 5 = 25, 3 left over
5 r 3
How many more students do we need to fill another car?
Well, each car fits 5 students = 2 more students to fill the car.

8. There will be some left over.
Solve with a Partner
Mrs. Brown-Haynes has 117 Ringpops to share with the 5 fourth grade classes. She wants to know if there are enough Ringpops for each student to have one if there are 20 students in the class.
117 ÷ 5 = ______ Ringpops for each class
23 r 2
23 x 5 = = 2
Yes, she will have enough Ringpops for each student to have at least 1.
There will be some left over.