Daily Practice · Higher

Daily Practice - Higher

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

2nd April 2014

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

1
Speed and Density2 marks
A block has volume 20 cm^3 and density 2.5 g/cm^3. Work out its mass.
2
Vectors3 marks
a is the column vector (-5, -5) and b is (4, -1). Work out 5a - 2b as a column vector.
3
Probability Trees3 marks
3 of 7 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 6, 12, 6, 5. Write down the cumulative frequency at the end of the third class.
5
Standard Form3 marks
Work out (81 x 10^9) / (9 x 10^4). Give your answer in standard form.

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