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 determine how many lengths of garden edging you need, let's break it down:

1. **Convert the length of each garden edging piece to meters**:
   - $ 1800 \text{ mm} = 1.8 \text{ m} $

2. **Divide the total perimeter by the length of one piece**:
   \[
   \frac{14 \text{ m}}{1.8 \text{ m}} \approx 7.78
   \]
   You can't buy a fraction of a piece, so you'll need to round up to the nearest whole number.

3. **Round up**:
   \[
   \lceil 7.78 \rceil = 8
   \]

So, you'll need to buy **8 lengths** of garden edging.

Would you like more details on the calculation or have any questions? Here are some related questions to explore:

1. How would the number of lengths change if the perimeter was 20m?
2. What if each garden edging length was 2 meters instead of 1.8 meters?
3. How many meters of edging would you have left over after covering the perimeter?
4. What is the cost per meter if each length costs $15?
5. How much extra material will you have with 8 lengths?

**Tip**: Always round up when purchasing materials to ensure full coverage!

Find out how to calculate the number of garden edging lengths required for a garden with a 14-meter perimeter. This guide covers key mathematical concepts such as measurement conversion, division, and rounding up. Perfect for students in Grades 4-6 or anyone looking for a quick calculation solution.

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