Let's solve each problem step by step using the formula:
$$
\text{Distance} = \text{Speed} \times \text{Time}
$$
We'll make sure units are consistent (e.g., time in hours, speed in miles per hour or yards per hour).
---
1. Car: 2 hours at 100 miles/h
$$
\text{Distance} = 100 \, \text{miles/h} \times 2 \, \text{h} = 200 \, \text{miles}
$$
✔ Answer: 200 miles
---
2. Plane: 4 hours at 400 miles/h
$$
\text{Distance} = 400 \times 4 = 1,600 \, \text{miles}
$$
✔ Answer: 1,600 miles
---
3. Bicycle: 90 minutes at 20 miles/h
First, convert 90 minutes to hours:
$$
90 \, \text{min} = \frac{90}{60} = 1.5 \, \text{hours}
$$
$$
\text{Distance} = 20 \times 1.5 = 30 \, \text{miles}
$$
✔ Answer: 30 miles
---
4. Helicopter: 20 minutes at 180 miles/h
Convert 20 minutes to hours:
$$
20 \, \text{min} = \frac{20}{60} = \frac{1}{3} \, \text{hour} \approx 0.333 \, \text{h}
$$
$$
\text{Distance} = 180 \times \frac{1}{3} = 60 \, \text{miles}
$$
✔ Answer: 60 miles
---
5. Walking: 150 minutes at 1,760 yards/h
Convert 150 minutes to hours:
$$
150 \div 60 = 2.5 \, \text{hours}
$$
$$
\text{Distance} = 1,760 \, \text{yards/h} \times 2.5 = 4,400 \, \text{yards}
$$
✔ Answer: 4,400 yards
---
6. Motorbike: 12 minutes at 75 miles/h
Convert 12 minutes to hours:
$$
12 \div 60 = 0.2 \, \text{hours}
$$
$$
\text{Distance} = 75 \times 0.2 = 15 \, \text{miles}
$$
✔ Answer: 15 miles
---
7. Tricycle: 30 minutes at 7,040 yards/h
Convert 30 minutes to hours:
$$
30 \div 60 = 0.5 \, \text{hours}
$$
$$
\text{Distance} = 7,040 \times 0.5 = 3,520 \, \text{yards}
$$
✔ Answer: 3,520 yards
---
✔ Final Answers (in order):
1.
200 miles
2.
1,600 miles
3.
30 miles
4.
60 miles
5.
4,400 yards
6.
15 miles
7.
3,520 yards
You can now fill in the blanks on the worksheet accordingly!
Parent Tip: Review the logic above to help your child master the concept of speed worksheet.
