Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

24th September 2018

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Bounds2 marks
A mass is 80 kg, correct to the nearest 10. Write down the lower bound.
2
Factorising Harder Quadratics3 marks
Factorise 4x^2 + 19x - 30.
3
Repeated Percentage Change3 marks
A price rises by 10% and then falls by 25%. Work out the overall percentage change, to 2 decimal places.
4
Spheres and Cones3 marks
A sphere has radius 12 cm. Work out its volume, leaving your answer in terms of pi.
5
Probability Trees3 marks
3 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.

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