Daily Practice · Higher

Daily Practice - Higher

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

28th July 2010

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

1
Speed and Density2 marks
A block has volume 135 cm^3 and density 3 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-6, 4) and b is (-5, 5). Work out 5a - 3b as a column vector.
3
Probability Trees3 marks
4 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Cumulative Frequency2 marks
Four classes in order have frequencies 10, 12, 11, 12. Write down the cumulative frequency at the end of the third class.
5
Standard Form2 marks
Work out (9 x 10^5) x (3 x 10^5). Give your answer in standard form.

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