Use known facts and mental strategies to calculate with decimal numbers within and across a whole
I can use known facts and mental strategies to calculate with decimal numbers within and across a whole.
Use known facts and mental strategies to calculate with decimal numbers within and across a whole
I can use known facts and mental strategies to calculate with decimal numbers within and across a whole.
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Lesson details
Key learning points
- If you know that 5 + 2 is equal to 7 then 5 tenths + 2 tenths is equal to 7 tenths so 0.5 + 0.2 = 0.7
- Use known facts and unitising to add tenths.
- Bridging 10 strategies with whole numbers can be applied when the tenths bridge one whole.
Keywords
Number facts - Simple calculations using two numbers are known as number facts. For example 2 + 4 = 6
Bridging - Bridging is a mental strategy which uses addition or subtraction to cross a number boundary.
Common misconception
Pupils record missing part equations incorrectly.
Encourage children to match the equation to a representation identifying which number represents the wholes and which represent parts.
To help you plan your year 5 maths lesson on: Use known facts and mental strategies to calculate with decimal numbers within and across a whole, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 5 maths lesson on: Use known facts and mental strategies to calculate with decimal numbers within and across a whole, download all teaching resources for free and adapt to suit your pupils' needs.
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Explore more key stage 2 maths lessons from the Compose and calculate with decimals including column addition and subtraction unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
