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The problem asks how many glasses and plates Mrs. Harrigan ordered altogether. Here's how we can break it down:

- Mrs. Harrigan ordered **30 boxes of glasses**, and each box contains **16 glasses**.
  - So, the total number of glasses is:  
    \( 30 \times 16 = 480 \)

- She also ordered **30 boxes of plates**, and each box contains **25 plates**.
  - So, the total number of plates is:  
    \( 30 \times 25 = 750 \)

Now, adding the total number of glasses and plates together:

\[
480 + 750 = 1230
\]

Therefore, Mrs. Harrigan ordered **1,230** glasses and plates altogether, not 310.

Would you like more details or have any questions?

Here are 5 questions to expand the concept:
1. How would the total change if Mrs. Harrigan ordered 50 boxes of glasses instead of 30?
2. What if each box of plates had 30 plates instead of 25? How would that affect the total?
3. If 10% of the glasses arrived broken, how many glasses were undamaged?
4. How would you calculate the total if the number of items in each box varied?
5. Can you express the total number of glasses and plates in terms of algebraic expressions?

**Tip:** Breaking down problems into smaller parts and multiplying in steps can simplify even larger calculations.

Mrs. Harrigan ordered 30 boxes of glasses for her restaurant. Each box holds 16 glasses. She also ordered 30 boxes of plates. There are 25 plates in each box. How many glasses and plates did Mrs. Harrigan order altogether?

Learn how to calculate the total number of glasses and plates ordered by Mrs. Harrigan. This problem uses multiplication and addition to find the total items ordered. Suitable for students in Grades 4-6.

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