Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Expanding Triple Brackets3 marks
Expand and simplify (x + 1)(x - 3)(x + 3).
- 2Speed and Density2 marks
A block has volume 25 cm^3 and density 11 g/cm^3. Work out its mass.
- 3Pythagoras2 marks
A right-angled triangle has a hypotenuse of 26 cm and one shorter side of 24 cm. Work out the other shorter side.
- 4Venn Diagrams3 marks
In a Venn diagram, 18 are in A only, 9 in B only, 10 in both and 10 in neither. Work out the probability a random one is in both.
- 5Cumulative Frequency2 marks
Four classes in order have frequencies 5, 7, 3, 10. Write down the cumulative frequency at the end of the third class.
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