Daily Practice · Higher

Daily Practice - Higher

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

14th July 2021

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
5 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 9, 3, 12, 6. Write down the cumulative frequency at the end of the third class.
3
Standard Form2 marks
Work out (9 x 10^7) x (7 x 10^-6). Give your answer in standard form.
4
Factorising Harder Quadratics3 marks
Factorise 2x^2 - 7x - 15.
5
Speed and Density2 marks
A block has volume 125 cm^3 and density 2.5 g/cm^3. Work out its mass.

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