MATHEMATICIAN Revision

What is the mean of 2, 4, 1 and 5 A: 4 B: 3 C: 12 D: 5

What is the mode of 4, 5, 4, 5, 3, 2, and 5 A: 5 B: 28 C: 4 D: 3

What is the median of 5, 4, 2, 6 and 1 B: 4 C: 3 D: 6

What is a x a when it is written using index notation? B: a + a C: a2 D: aa

What is a when 5a = 15? A: 5 B: 3 C: 15 D: 18

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What is 6 lots of 3χ? A: 6χ B: 3χ C: 9χ D: 18χ

What is the value of χ2 when χ = 7? 36 B: 49 C: 14 D: 7

Multiply out 3(χ + 2) A: 3χ + 2 B: 3χ + 6 C: 5χ D: 3χ + 3

Simplify 3a + 4a – 6a A: a B: 2a C: 13a D: 12a

What is χ if 5χ – 2 = 18? A: 3 B: 4 C: 5 D: 6

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Simplify 5a + 3a + 7b – 5b? A: 8a12b B: 8a – 12b C: 8a + 2b D: 8a – 12b

Multiply out 7(χ – 3) ? A: 10χ2 B: 7χ - 21 C: 7χ + 21 D: 7χ2 + 3

If P = 3n + 2, what is P when n = 4? A: 14 B: 5 C: 20 D: 36

Multiply out 3χ (χ + 4)? A: 3χ2 + 12χ B: 3χ2 + 12 C: 3χ2 - 12χ D: 3χ4 + 3

What is 3χ2 when χ = 4 ? A: 144 B: 48 C: 36 D: 34

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Question? A: Answer 1 B: Answer 2 C: Answer 3 D: Answer 4