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Decimals Introduction Worksheet

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Decimals Introduction Worksheet

Decimal numbers illustration

🎯 WALT: Recognise and write decimal numbers to one decimal place

📚 Part 1: Understanding Decimals

1. What does the decimal point (.) do in a number?

It separates whole numbers from parts smaller than one

It makes numbers bigger

It is just for decoration

2. Circle the decimal point in these numbers:

3.2 0.7 12.5 0.1

3. Which of these are decimal numbers? Tick all that apply:

0.5

23

1.8

45

0.3

4. Match the decimal to the fraction:

0.1 = _____ tenths 0.7 = _____ tenths 0.9 = _____ tenths

💰 Part 2: Real-Life Decimals Hunt

5. Look at these New Zealand prices. Write the decimal number:

Milk costs two dollars and thirty cents: $______

Bread costs three dollars and fifty cents: $______

Apples cost four dollars and twenty cents: $______

6. Complete these measurement decimals:

My pencil is 15.2 centimetres long. The decimal part is _____ which means _____ tenths.

The temperature today is 18.5°C. The decimal part is _____ which means _____ tenths.

7. Write these decimals in order from smallest to largest:

0.8 0.3 0.1 0.6

Answer: _____ , _____ , _____ , _____

✏️ Part 3: Writing and Explaining Decimals

8. Write these numbers as decimals:

Three tenths = _____

Seven tenths = _____

One and four tenths = _____

Nine tenths = _____

9. Explain what 0.6 means using this sentence starter:

This number is zero point six. It means _____ tenths, which is the same as the fraction _____.

10. Extension Challenge: Can you write these as decimals to two decimal places?

Fifteen hundredths = _____

Twenty-five hundredths = _____

One and thirty-five hundredths = _____

11. Extension Challenge: Convert these fractions to decimals:

2/10 = _____

5/10 = _____

8/10 = _____

12. Draw or write about where you might see decimals in your everyday life in Rotorua:

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