Let’s solve each problem one by one, step by step.
---
Problem 1:
A summer camp charges $15.75 per day for a child. How much would it cost for 10 days?
→ Multiply the daily cost by 10:
$15.75 × 10 = $157.50
✔ Check: Moving decimal one place right when multiplying by 10 → 15.75 → 157.50. Correct.
---
Problem 2:
Emily’s family uses 3.2 gallons of water per day. If usage increases 10 times during a heat wave, how many gallons do they use per day during the heatwave?
→ Multiply 3.2 by 10:
3.2 × 10 = 32
✔ Check: Again, multiply by 10 → move decimal one place right → 3.2 → 32. Correct.
---
Problem 3:
A summer camp has 4.5 liters of juice. If they need 100 times this amount for the entire summer, how many liters of juice do they need?
→ Multiply 4.5 by 100:
4.5 × 100 = 450
✔ Check: Multiply by 100 → move decimal two places right → 4.5 → 450. Correct.
---
Problem 4:
A beach ball costs $6.70. How much do 10 beach balls cost?
→ Multiply 6.70 by 10:
6.70 × 10 = 67.00 → $67.00
✔ Check: Move decimal one place right → 6.70 → 67.00. Correct.
---
Problem 5:
A lemonade stand sells 1.2 liters per hour. If sales increase by 100 times during a fair, how many liters per hour at the fair?
→ Multiply 1.2 by 100:
1.2 × 100 = 120
✔ Check: Move decimal two places right → 1.2 → 120. Correct.
---
Problem 6:
A water park uses 266.3 liters per day. If usage increases 10 times in summer, how many liters per day in summer?
→ Multiply 266.3 by 10:
266.3 × 10 = 2663
✔ Check: Move decimal one place right → 266.3 → 2663. Correct.
---
Problem 7:
A beach resort charges $45.50 per night. How much for 10 nights?
→ Multiply 45.50 by 10:
45.50 × 10 = 455.00 → $455.00
✔ Check: Move decimal one place right → 45.50 → 455.00. Correct.
---
Final Answer:
1. $157.50
2. 32 gallons
3. 450 liters
4. $67.00
5. 120 liters
6. 2663 liters
7. $455.00
Parent Tip: Review the logic above to help your child master the concept of multiplying decimals word problems worksheet.
