Problem Description:
The task involves measuring the length of objects using a ruler and rounding the measurements to the nearest
1/2 inch. The goal is to practice measuring skills while understanding how to round measurements appropriately.
Solution Approach:
1.
Understand the Ruler:
- The ruler in the image has markings for inches, with smaller divisions representing fractions of an inch.
- Each large division represents 1 inch, and the smaller divisions between them represent fractions (e.g., 1/2 inch, 1/4 inch, etc.).
2.
Measure Each Object:
- Place each object along the ruler so that one end aligns with the 0-inch mark.
- Observe where the other end of the object falls on the ruler.
3.
Round to the Nearest 1/2 Inch:
- If the measurement falls exactly on a half-inch mark (e.g., 1.5 inches, 2.5 inches), that is the rounded value.
- If the measurement is closer to a whole number or another half-inch mark, round accordingly:
- If it's closer to the lower half-inch mark, round down.
- If it's closer to the higher half-inch mark, round up.
4.
Record the Measurements:
- Write down the rounded measurements for each object.
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Step-by-Step Solution:
####
Object 1:
- Align the object with the 0-inch mark.
- The object ends between the 1-inch and 2-inch marks, closer to the 1.5-inch mark.
- Rounded to the nearest 1/2 inch:
1.5 inches.
####
Object 2:
- Align the object with the 0-inch mark.
- The object extends beyond the 6-inch mark but does not reach 7 inches.
- It appears to be closer to the 6.5-inch mark.
- Rounded to the nearest 1/2 inch:
6.5 inches.
####
Object 3:
- Align the object with the 0-inch mark.
- The object ends between the 3-inch and 4-inch marks, closer to the 3.5-inch mark.
- Rounded to the nearest 1/2 inch:
3.5 inches.
####
Object 4:
- Align the object with the 0-inch mark.
- The object ends between the 1-inch and 2-inch marks, closer to the 1.5-inch mark.
- Rounded to the nearest 1/2 inch:
1.5 inches.
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Final Answer:
The measurements rounded to the nearest 1/2 inch are:
1.
1.5 inches
2.
6.5 inches
3.
3.5 inches
4.
1.5 inches
$$
\boxed{1.5, 6.5, 3.5, 1.5}
$$
Parent Tip: Review the logic above to help your child master the concept of half inch measuring worksheet.