Mrs chassion is trying to figure out if she needs to get more pencils for her class. There are 10 pencils to a pack, and she has 3 partially full packs/ 1 pack is 4/10 full, 1 pack is 1/2 full, and 1 pack is 2/5 full. How many total pencils does Mrs chassion have?

To determine the total number of pencils Mrs. Chassion currently has, we'll calculate the number of pencils in each partially full pack and then sum them up.

### Step 1: Calculate the number of pencils in each pack

1. **First pack:** \( \frac{4}{10} \) full
   \[
   \text{Pencils in first pack} = \frac{4}{10} \times 10 = 4 \text{ pencils}
   \]

2. **Second pack:** \( \frac{1}{2} \) full
   \[
   \text{Pencils in second pack} = \frac{1}{2} \times 10 = 5 \text{ pencils}
   \]

3. **Third pack:** \( \frac{2}{5} \) full
   \[
   \text{Pencils in third pack} = \frac{2}{5} \times 10 = 4 \text{ pencils}
   \]

### Step 2: Add the pencils from all packs
\[
\text{Total pencils} = 4 + 5 + 4 = 13 \text{ pencils}
\]

So, Mrs. Chassion has **13 pencils** in total.

Would you like to explore more details or have any further questions?

Here are some related questions you might consider:
1. How many more pencils would Mrs. Chassion need to have a full pack of 10 pencils?
2. If Mrs. Chassion finds another half-full pack, how many pencils would she have then?
3. What fraction of a full pack would 13 pencils be?
4. If Mrs. Chassion wanted to distribute the 13 pencils evenly among 4 students, how many pencils would each student get?
5. How many additional pencils are needed to make each of the three packs full?

**Tip:** When dealing with fractions of quantities, always remember to multiply the fraction by the total to find the part's value.

Discover how to calculate the total number of pencils Mrs. Chassion has in her classroom. This problem involves fractions and multiplication, specifically calculating partial pack quantities. Suitable for Grades 4-6 students.

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