Mon Prof Augmenté
One Bar Split Into Tenths
Age 9 · Maths
The bar is cut into ten equal pieces, and three of them are painted orange. Each piece is one tenth, so the orange part is 0.3 of the whole bar.
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Age 9: open this week
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In the picture
- The wooden frame around the whole bar: everything inside it counts as 1.
- One cream segment: a single equal piece, worth 0.1.
- The orange stretch: three pieces together, worth 0.3.
Examples
- A chocolate bar snapped into ten squares: eating three of them is 0.3 of the bar.
- A one-litre bottle with ten marks: water up to the third mark is 0.3 litres.
Key takeaways
- Ten equal parts of one whole are tenths, and each one is written 0.1.
- The digit just after the decimal point counts the tenths: 0.3 means three of them.
Quiz: One Bar Split Into Tenths (Age 9)
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A whole strip is cut into ten equal pieces. How much is one of those pieces worth?
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Six of the ten equal pieces of one whole are coloured in. Which decimal shows the coloured part?
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Three of ten equal pieces are coloured in, which is 0.3 of the whole. Which decimal shows the part that is not coloured?
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