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The problem describes Ida buying 3 plastic packages, each containing 12 keychains, and distributing them equally among 8 friends. Let's solve the questions step by step.

### Total Number of Keychains:
- Each plastic contains 12 keychains, and there are 3 plastics.
- Total keychains = \( 3 \times 12 = 36 \)

### Question (a): 
- How many keychains does each friend receive?
- To find this, divide the total number of keychains by the number of friends: 
  \[
  \text{Keychains per friend} = \frac{36}{8} = 4 \text{ keychains per friend}
  \]

### Question (b): 
- Is there a remainder? How many?
- 36 keychains divided by 8 friends leaves no remainder, as \( 36 \div 8 = 4 \) with no remainder.

### Final Answer:
- a) Each friend receives 4 keychains.
- b) There are no leftover keychains, as all 36 keychains are distributed evenly.

Would you like any further explanation or details on this? 

Here are 5 follow-up questions you might find useful:
1. What would happen if there were 9 friends instead of 8?
2. How would you calculate the remainder if there was one?
3. What if each plastic contained 15 keychains instead of 12?
4. How can you check if a division will have a remainder before calculating?
5. What is the total number of keychains if Ida buys 5 plastics?

**Tip:** When dividing and looking for remainders, the modulo operation (\( \%\)) can help determine if any keychains are left after distribution.

Ida membeli oleh-oleh berupa gantungan kunci sebanyak 3 plastik. Setiap plastik berisi 12 gantungan kunci. Ida ingin memberikan gantungan kunci tersebut kepada 8 orang temannya dengan jumlah yang sama. a. Berapa jumlah gantungan kunci yang diterima setiap temannya? b. Apakah ada sisa gantungan kunci? Berapa jumlahnya?

Learn how to solve a division problem involving the distribution of 36 keychains equally among 8 friends. This problem covers key mathematical concepts like division, multiplication, and remainders. Suitable for students in Grades 4-6.

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