Year 6 Decimals: lesson and practice

By the end of this chapter you will be able to

• Say the value of each digit in a number with up to three decimal places, using place value
• Multiply and divide decimals by 10, 100 and 1000, and give the answer to three decimal places
• Multiply a decimal with up to two decimal places by a whole number, using the column method
• Divide by a whole number with long division, and give the answer to two decimal places
• Round a number to a given degree of accuracy, and decide whether to round up or down in a problem
• Explain your reasoning about decimals, and spot the mistakes in other people’s working

You should already know

• Tenths and hundredths as decimals and fractions (Year 5, Chapter 7)
• Multiplying and dividing whole numbers by 10, 100 and 1000 (Year 5, Chapters 4 and 5)
• Short and long multiplication and division of whole numbers (Year 6, Chapter 2)

Where this leads

• Percentages as decimals and fractions, such as 15% of 360 (Chapter 6)
• Ratio and proportion with decimal amounts (Chapter 7)
• Measures and conversions between units with decimals (Chapter 9)