Starter quiz
- Work out the answer to .
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- Work out the answer to .
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- Work out the answer to .
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- Match the calculation on the left with the answer on the right.
- ⇔✓
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- Work out the answer to .
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- 2
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- Without using a calculator, work out .
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Exit quiz
- A small, rectangular plot of dirt has length metres by metres. Work out the area of the plot of dirt in m.
- m
- m
- m
- m ✓
- m
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- Andeep wants to put an edging around a small, rectangular plot of dirt. It has length m by m. Work out the total length of the edging, giving your answer in cm.
- 1.45 cm
- 145 cm
- 290 cm ✓
- 29 cm
- 300 cm
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- A plot of land measures m by m. It will cost £20 per m to grass this plot of land. Who has correctly worked out the cost?
- Andeep says "Rounding, the area is so "
- Sofia says " so rounding gives . Andeep is right.
- Jun says "" ✓
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- A square picture frame is made from wood with length m. Laura wants to put a metal trim around the picture. The trim cost £1.20 per 10 cm. How much will it cost to trim the frame?
- £45.80
- £39.50
- £23.80
- £38.40 ✓
- £40
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- A piece of farmland has an area of km. One sheep needs m of land for grazing. How many sheep can live on the farmland?
- '400' ✓
- Aisha is restoring some old picture frames. She wants to cover the frame in gold leaf. Gold leaf costs £1 per cm. How much will it cost Aisha to gold leaf the picture frame?
- '45' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- When calculating with fractions and decimals, a common form can be easier.
- A calculator removes the need for a common form.
- The commutative law can be applied to make calculations easier.
Common misconception
Incorrectly inputting a mixed number into the scientific calculator.
A mixed number has it's own separate button. Incorrectly inputting in the mixed number will return brackets on the calculator screen.
Keywords
Mixed number - A mixed number is an improper fraction written as its integer part plus the fractional part where the fractional part is a proper fraction.
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