Videos to help Grade 4 students explain remainders by using place value understanding and models.

Common Core Standards: 4.NBT.6, 4.OA.3

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Common Core For Grade 4

Problem 2

Share $64 as 6 tens and 4 ones equally between 4 friends.

3. The number disk model is showing 72 ÷ 3. Complete the model. Explain what happens to the 1 ten that is remaining in the tens column.

1. When you divide 94 by 3, there is a remainder of 1. Model this problem with number disks. In the number disk model, how did you show the remainder?

a. They have 5 ten dollar bills and 6 dollar bills. Draw a picture to show how the bills will be shared.

Will they have to make change at any stage?

b. Explain how they share the money evenly.

1. When you divide 94 by 3, there is a remainder of 1. Model this problem with number disks. In the number disk model, how did you show the remainder?

2. Cayman says that 94 ÷ 3 is 30 with a remainder of 4. He reasons it is correct because (3 × 30) + 4 = 94. What mistake has Cayman made? Explain how he can correct his work.

3. The number disk model is showing 72 ÷ 3. Complete the model. Explain what happens to the 1 ten that is remaining in the tens column.

4. Two friends share 56 dollars.

a. They have 5 ten dollar bills and 6 dollar bills. Draw a picture to show how the bills will be shared. Will they have to make change at any stage?

b. Explain how they share the money evenly.

5. Imagine you are filming a video explaining the problem 45 ÷ 3 to new fourth graders. Create a script to explain how you can keep dividing after getting a remainder of 1 ten in the first step.

1. When you divide 86 by 4 there is a remainder of 2. Model this problem with number disks. In the number disk model, how can you see that there is a remainder?

2. Francine says that 86 ÷ 4 is 20 with a remainder of 6. She reasons it is correct because (4 × 20) + 6 = 86.

What mistake has Francine made? Explain how she can correct her work.

3. The number disk model is showing 67 ÷ 4. Complete the model. Explain what happens to the 2 tens that are remaining in the tens column.