Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 240 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 2Reverse Percentages3 marks
A bill is £648 including VAT at 20%. Work out the amount before VAT.
- 3Expanding Triple Brackets3 marks
Expand and simplify (x - 2)(x + 2)(x + 3).
- 4Repeated Percentage Change3 marks
A price rises by 20% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
- 5Pythagoras2 marks
A right-angled triangle has a hypotenuse of 41 cm and one shorter side of 40 cm. Work out the other shorter side.
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