Estimating length in centimeters means making a good guess about how long something is using centimeters as your unit of measurement. A centimeter is a small unit, about the width of your fingernail. When estimating, it's helpful to compare the object to something you know is about 1 cm long, like a crayon's width, and then see how many of those 'centimeters' fit along the object's length. Remember, it's an estimate, so it doesn't have to be perfect!
Match each word with its meaning:
| Word | Meaning |
|---|---|
| 1. Estimate | A. A unit of length, about the width of your fingernail. |
| 2. Centimeter | B. How long something is from one end to the other. |
| 3. Length | C. To make a good guess about the size or amount of something. |
| 4. Measurement | D. The tool used for measuring length in centimeters |
| 5. Ruler | E. Finding the size, amount, or degree of something. |
Use the words below to complete the sentences.
Words: centimeters, estimate, ruler
Imagine you need to estimate the length of your pencil. Explain the steps you would take to estimate its length in centimeters without using a ruler.
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