Daily Practice · Higher

Daily Practice - Higher

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

7th December 2016

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
2 of 7 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 12, 9, 11, 9. Write down the cumulative frequency at the end of the third class.
3
Fractional and Negative Indices3 marks
Work out 216^(2/3).
4
Factorising Harder Quadratics3 marks
Factorise 4x^2 + 4x + 1.
5
Speed and Density2 marks
A block has volume 140 cm^3 and density 2.5 g/cm^3. Work out its mass.

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