John cashed a check for $630. The teller gave him three 50-dollar bills, eighteen 20-dollar bills, and *t* 10-dollar bills. Determine the value of *t*.

To determine the value of $ t $, we'll first calculate the total amount of money John received in $50 and $20 bills, then subtract that from the $630 check to find the amount represented by the $10 bills.

1. **Value of three $50 bills:**

\[
3 \times 50 = 150 \text{ dollars}
\]

2. **Value of eighteen $20 bills:**

\[
18 \times 20 = 360 \text{ dollars}
\]

3. **Total value of the $50 and $20 bills:**

\[
150 + 360 = 510 \text{ dollars}
\]

4. **Amount left for the $10 bills:**

\[
630 - 510 = 120 \text{ dollars}
\]

5. **Value of $ t $ $10-dollar bills:**

Since $ t \times 10 $ must equal $120:

\[
t = \frac{120}{10} = 12
\]

So, $ t $ is **12**.

Would you like more details or have any questions about this? 

Here are 5 related questions:
1. What if John received four $50 bills instead of three?
2. How much money would John receive if the teller gave him twenty-five $20-dollar bills and no $50-dollar bills?
3. If John received $5 bills instead of $10 bills, how many $5 bills would he have received?
4. What would the total amount be if the check was for $750, with the same number of $50 and $20 bills?
5. If John wanted only $100 bills, how many would he receive from the $630 check?

**Tip:** Always break down the problem into smaller parts to handle calculations step by step, which helps avoid errors.

Learn how to determine the number of $10 bills received by John when he cashed a $630 check. Follow a step-by-step calculation method involving arithmetic and money calculations. Suitable for students in Grades 3-5.

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