Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
22nd June 2026
- 1Repeated Percentage Change3 marks
A price rises by 20% and then falls by 10%. Work out the overall percentage change, to 2 decimal places.
- 2Vectors3 marks
a is the column vector (-4, 4) and b is (0, 2). Work out 5a - 4b as a column vector.
- 3Probability Trees3 marks
4 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 4Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 68 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 5Standard Form2 marks
Work out (2 x 10^4) x (4 x 10^-6). Give your answer in standard form.
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