Change pack
Lintel
Aug 23 - 29
25 questions
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1.
Number
Write 70,000,000 in standard form
Answer: 7 × 107
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2.
Algebra
Factorise: x² - 4x - 45
Answer: (x + 5)(x - 9)
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3.
Geometry
Adjacent = 28cm, angle = 32°. Find opposite. Give your answer to 2 decimal places
Answer: 17.5cm
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4.
Ratio
In ratio 12:1:2, what fraction is the second part?
Answer: 1⁄15
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5.
Statistics
The mean of 6 numbers is 30. If 5 of them are 15, 18, 23, 25, 48, what is the missing number?
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1.
Number
Write 290,000 in standard form
Answer: 2.9 × 105
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2.
Algebra
Factorise: x² - 5x - 24
Answer: (x + 3)(x - 8)
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3.
Geometry
Adjacent = 23cm, angle = 50°. Find opposite. Give your answer to 2 decimal places
Answer: 27.41cm
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4.
Ratio
Simplify: 9:6:12
Answer: 3:2:4
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5.
Statistics
Calculate the mean of: 33, 17, 40, 31, 30, 6. Give your answer to 2 decimal places
Answer: 26.17
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1.
Number
Write 0.033 in standard form
Answer: 3.3 × 10-2
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2.
Algebra
Factorise: x² - 10x - 11
Answer: (x + 1)(x - 11)
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3.
Geometry
Hypotenuse = 36cm, angle = 56°. Find adjacent side. Give your answer to 2 decimal places
Answer: 20.13cm
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4.
Ratio
Simplify: 10:8:10
Answer: 5:4:5
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5.
Statistics
The mean of 4 numbers is 31. If 3 of them are 34, 24, 29, what is the missing number?
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1.
Number
Write 20,000 in standard form
Answer: 2 × 104
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2.
Algebra
Factorise: x² - 4x + 3
Answer: (x - 1)(x - 3)
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3.
Geometry
Adjacent = 11cm, angle = 39°. Find opposite. Give your answer to 2 decimal places
Answer: 8.91cm
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4.
Ratio
Simplify: 12:6:4
Answer: 6:3:2
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5.
Statistics
The mean of 6 numbers is 37. If 5 of them are 40, 19, 44, 21, 38, what is the missing number?
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1.
Number
Write 0.0042 in standard form
Answer: 4.2 × 10-3
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2.
Algebra
Factorise: x² + 6x - 16
Answer: (x + 8)(x - 2)
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3.
Geometry
Hypotenuse = 40cm, angle = 58°. Find adjacent side. Give your answer to 2 decimal places
Answer: 21.2cm
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4.
Ratio
Simplify: 10:4:10
Answer: 5:2:5
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5.
Statistics
Calculate the mean of: 37, 8, 41, 30, 48, 31, 37. Give your answer to 2 decimal places
Answer: 33.14