Vertical Multiplication: Worded problems

The problem requires us to find out how many glasses of water Danny drinks in 13 hours given he drinks 3 glasses per hour. Our task is to multiply the number of glasses Danny drinks per hour by the number of hours he continues this rate.

• Step 1: Identify the rate: Danny drinks 3 glasses per hour.
• Step 2: Determine the duration: 13 hours.
• Step 3: Apply multiplication to find the total glasses consumed:

To find the total number of glasses:

$\text{Total glasses} = 3 \, (\text{glasses per hour}) \times 13 \, (\text{hours})$

Calculating the product:

$3 \times 13 = 39$

Therefore, Danny drinks a total of 39 glasses of water over the span of 13 hours.

To determine how many gifts Sarah wraps in 23 days, we need to calculate the total number of gifts by multiplying the number of gifts she wraps each day by the total number of days.

• Step 1: Identify the number of gifts Sarah wraps each day. In this case, Sarah wraps $9$ gifts per day.
• Step 2: Identify the total number of days which is given as $23$.
• Step 3: Apply the multiplication formula to find the total number of gifts:

$\text{Total Gifts} = (\text{Gifts per day}) \times (\text{Number of days})$

Substitute the numbers into the formula:

$\text{Total Gifts} = 9 \times 23$

Now, calculate the result:

$9 \times 23 = 207$

Therefore, Sarah wraps a total of $207$ gifts over the course of 23 days.

To determine how many gifts Sonia wraps in 20 hours when she wraps 7 gifts per hour, we will calculate as follows:

• Step 1: Identify the rate: $7$ gifts per hour.
• Step 2: Identify the time duration: $20$ hours.
• Step 3: Use the formula: Total number of gifts = (Number of gifts per hour) × (Number of hours).
• Step 4: Perform the calculation: $7 \text{ gifts/hour} \times 20 \text{ hours} = 140 \text{ gifts}$.

Therefore, Sonia wraps $140$ gifts in 20 hours.

Comparing this result with the provided choices, we determine that the correct choice is: $140$.

To determine the number of flowers Diego plants in 31 days, we employ the following straightforward approach using multiplication:

Given:

• Diego plants $5$ flowers each day.
• We are considering a total span of $31$ days.

The formula to find the total number of flowers Diego plants is:

$\text{Total flowers} = (\text{Flowers per day}) \times (\text{Number of days})$

Substituting the values into the formula, we have:

$\text{Total flowers} = 5 \times 31$

Now, perform the multiplication:

$5 \times 31 = 155$

Therefore, Diego plants a total of $\mathbf{155}$ flowers over a 31-day period.

Checking the answer against the choices, we see that the correct option is choice 2: $155$.

To solve this problem, we'll calculate the total cost by multiplying the number of meals by the cost of each meal:

• Step 1: Identify the given information: Sonia buys 5 meals, and each meal costs 43.

• Step 2: Multiply the number of meals by the price per meal to determine the total cost.

Now, let's perform the calculation:
Sonia buys \( 5 meals, and each costs \43 \). Therefore, the total cost is:

$\text{Total Cost} = 5 \times 43$

We calculate:

$5 \times 43 = 215$

Therefore, Sonia pays a total of $215 for the 5 meals.

Since the multiple-choice option that matches our solution is choice 2, we confirm that the correct answer is \215 \).

To solve this problem, we'll determine the total number of muffins sold in 8 hours using the given hourly rate.

• Step 1: Identify the given information: The bakery sells 51 muffins in one hour, and we need to calculate for 8 hours.
• Step 2: Use the multiplication formula: $\text{Total muffins} = \text{Muffins per hour} \times \text{Number of hours}$
• Step 3: Perform the multiplication: $51 \text{ muffins/hour} \times 8 \text{ hours} = 408 \text{ muffins}$

Thus, the total number of muffins sold in 8 hours is $408$.

To solve this problem, we'll follow these steps:

• Step 1: Identify the given information.
• Step 2: Apply the appropriate multiplication formula.
• Step 3: Perform the necessary calculations to find the total number of pitas sold.

Now, let's work through each step:
Step 1: We know the restaurant sells 95 falafel pitas per day.
Step 2: We need to find out how many are sold in 5 days, so we use the formula:
$\text{Total pitas sold} = \text{Pitas per day} \times \text{Number of days}$
Step 3: Plugging in our values, we perform the multiplication:
$\text{Total pitas sold} = 95 \times 5 = 475$

Therefore, the total number of falafel pitas sold in 5 days is $475$.

To solve this problem, we'll follow these steps:

• Step 1: Identify the given information.
• Step 2: Apply the multiplication method to find the monthly total.
• Step 3: Verify our calculation to ensure accuracy.

Now, let's work through each step:

Step 1: Ariel reads 3 books every day.

Step 2: Assume a month has 30 days as a typical average. To find out how many books Ariel reads per month, we can multiply the number of books read daily by the number of days in a month.

The calculation is: $3 \times 30$.

Step 3: Performing the multiplication gives us:

$3 \times 30 = 90$.

Thus, Ariel reads a total of 90 books in a month.

Therefore, the solution to the problem is $90$.

To solve this problem, we'll follow these steps:

• Step 1: Identify the given information.
• Step 2: Use the multiplication formula to find the total number of gifts wrapped.
• Step 3: Compute the total using the given data.

Now, let's work through each step:

Step 1: The problem states that Sarah wraps 7 gifts per day, and we want to find the total for 14 days.

Step 2: We use the formula for total gifts wrapped, which is given by:

$\text{Total gifts} = (\text{gifts per day}) \times (\text{number of days})$

Step 3: Plugging the values into the formula, we get:

$\text{Total gifts} = 7 \times 14$

This results in:

$\text{Total gifts} = 98$

Therefore, the solution to the problem is $98$.

To solve this problem, we'll follow these steps:

• Step 1: Identify the number of meals Daniel prepares per day, which is given as 3.
• Step 2: Identify the total number of days, which is given as 17.
• Step 3: Multiply the number of meals per day by the number of days to find the total meals.

Now, let's work through each step:
Step 1: Daniel prepares $3$ meals per day.
Step 2: We are considering a total of $17$ days.
Step 3: Calculate the total number of meals by multiplying:
$\text{Total meals} = 3 \times 17$

Carrying out the multiplication:
$3 \times 17 = 51$

Therefore, Daniel prepares a total of $51$ meals over 17 days.

To solve this problem, we'll go through the following steps:

• Step 1: Convert the time from hours to minutes.
• Step 2: Calculate the total number of cookies eaten using the rate of eating.

Now, let's work through each step:

Step 1: Convert the time from hours to minutes. Since there are 60 minutes in an hour, the time span in minutes is $60$ minutes.

Step 2: Calculate the total number of cookies. Darío's eating rate is $3$ cookies per minute. Multiply the eating rate by the total time in minutes to find the total number of cookies eaten:

Therefore, Darío eats a total of $180$ cookies in one hour.

This matches the given correct answer choice. Thus, the solution to the problem is $180$.

To solve this problem, we will calculate the total number of cups Mariano drinks in a year:

• Step 1: Identify the number of cups Mariano drinks per day, which is given as 5 cups.

• Step 2: Identify the number of days in a year, generally considered to be 365 days.

• Step 3: Multiply the daily consumption by the number of days in a year: $5 \times 365$.

Performing the calculation:
$5 \times 365 = 1825$.

Therefore, Mariano drinks a total of 1825 cups of tea in a year. This corresponds to choice number 2: \text{ \( 1825 } \).

To solve this problem, we will determine the total number of falafel pitas sold over a 10-day period.

• Step 1: Identify the daily sales and the total number of days.
  Given: Daily sales = $81$ falafel pitas, Number of days = $10$.

• Step 2: Apply the multiplication formula.
  Total Sales = Daily Sales × Number of Days = $81 \times 10$.

• Step 3: Perform the multiplication.
  Calculate $81 \times 10 = 810$.

Therefore, the total number of falafel pitas sold in 10 days is $810$.