The image shows a red pencil placed above a ruler to measure its length. Let's solve the problem step by step:
Step 1: Identify the starting point
- The left end of the pencil aligns with the
5 cm mark on the ruler.
Step 2: Identify the ending point
- The tip of the pencil (the pointed end) aligns with the
16 cm mark on the ruler.
Step 3: Calculate the length
To find the length of the pencil, subtract the starting point from the ending point:
$$
\text{Length} = 16\,\text{cm} - 5\,\text{cm} = 11\,\text{cm}
$$
Final Answer:
The length of the pencil is
11 centimeters.
Explanation:
We measured from the beginning of the pencil at 5 cm to the end at 16 cm. Since the ruler is marked in centimeters and millimeters, we can read the measurement accurately. The difference between these two points gives us the total length of the pencil.
Parent Tip: Review the logic above to help your child master the concept of measuring a pencil.