Let's solve each problem step by step.
---
Problem 1:
Joe made \$24.00 mowing lawns last week. He charges \$4 per lawn. How many lawns did he mow last week?
#### Solution:
To find out how many lawns Joe mowed, we need to divide the total amount of money he earned by the amount he charges per lawn.
- Total money earned: \$24.00
- Charge per lawn: \$4
\[
\text{Number of lawns} = \frac{\text{Total money earned}}{\text{Charge per lawn}} = \frac{24}{4} = 6
\]
So, Joe mowed
6 lawns.
#### Answer:
\[
\boxed{A}
\]
---
Problem 2:
There are 45 students in the 7th grade band class. The director wants to put them into rows of 5 students. How many rows will he need?
#### Solution:
To find out how many rows are needed, we divide the total number of students by the number of students per row.
- Total number of students: 45
- Students per row: 5
\[
\text{Number of rows} = \frac{\text{Total number of students}}{\text{Students per row}} = \frac{45}{5} = 9
\]
So, the director will need
9 rows.
#### Answer:
\[
\boxed{C}
\]
---
Problem 3:
A box of books weighs 27 pounds. Each book weighs 3 pounds. How many books are in the box?
#### Solution:
To find out how many books are in the box, we divide the total weight of the box by the weight of each book.
- Total weight of the box: 27 pounds
- Weight of each book: 3 pounds
\[
\text{Number of books} = \frac{\text{Total weight of the box}}{\text{Weight of each book}} = \frac{27}{3} = 9
\]
So, there are
9 books in the box.
#### Answer:
\[
\boxed{D}
\]
---
Problem 4:
A cereal box holds 18 cups of cereal. Each serving is 2 cups. How many servings are in the box?
#### Solution:
To find out how many servings are in the box, we divide the total amount of cereal by the amount per serving.
- Total amount of cereal: 18 cups
- Amount per serving: 2 cups
\[
\text{Number of servings} = \frac{\text{Total amount of cereal}}{\text{Amount per serving}} = \frac{18}{2} = 9
\]
So, there are
9 servings in the box.
#### Answer:
\[
\boxed{D}
\]
---
Final Answers:
1. \(\boxed{A}\)
2. \(\boxed{C}\)
3. \(\boxed{D}\)
4. \(\boxed{D}\)
Parent Tip: Review the logic above to help your child master the concept of 3rd grade division word problems.
