Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Bounds2 marks
A mass is 260 kg, correct to the nearest 10. Write down the upper bound.
- 2Quadratic Formula3 marks
Work out the discriminant of 3x^2 + 3x + 10 = 0 and say how many real solutions it has.
- 3Speed and Density2 marks
A block has volume 145 cm^3 and density 8 g/cm^3. Work out its mass.
- 4Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 26 cm^2. Work out the area of the larger.
- 5Conditional Probability3 marks
16 students study Spanish and 7 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
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