You need garden edging for a garden with a perimeter of 14m. Garden edging comes in 1800mm lengths. How many lengths will you need to buy to have enough edging for the entire perimeter?

To find out how many lengths of garden edging are needed, we first need to convert the total perimeter of the garden from meters to millimeters, since the lengths of garden edging are given in millimeters.

1. **Convert the perimeter from meters to millimeters:**

\[
14 \text{ meters} = 14 \times 1000 = 14000 \text{ millimeters}
\]

2. **Determine the number of 1800mm lengths needed:**

To find the number of lengths, divide the total perimeter by the length of each piece of edging:

\[
\text{Number of lengths} = \frac{14000}{1800}
\]

Let's calculate this:

\[
\text{Number of lengths} \approx 7.78
\]

Since you can't buy a fraction of a length, you will need to round up to the next whole number.

3. **Round up to the nearest whole number:**

\[
\text{Number of lengths} = 8
\]

### Conclusion:

You will need to buy **8 lengths** of garden edging to cover the entire 14-meter perimeter of your garden.

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Would you like more details or have any questions about this solution?

Here are some related questions you might be interested in:

1. How would the number of lengths change if the perimeter were larger?
2. What would be the cost if each length of garden edging costs $5?
3. How would you calculate the number of lengths needed for a circular garden?
4. Can the lengths be cut to fit exactly 14 meters, and how would that change the number required?
5. What other measurements might be important when planning garden edging?

**Tip:** Always round up when calculating material requirements to ensure you have enough!

Find out how to calculate the number of garden edging lengths needed for a 14-meter perimeter. This solution covers key concepts in measurement conversion, division, and rounding. Perfect for middle school students in Grades 6-8.

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