Change pack
Lintel
May 19 - 25
25 questions
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1.
Number
Write 570,000,000 in standard form
Answer: 5.7 × 108
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2.
Algebra
Factorise: x² - 3x - 28
Answer: (x + 4)(x - 7)
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3.
Geometry
Adjacent = 24cm, angle = 58°. Find opposite. Give your answer to 2 decimal places
Answer: 38.41cm
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4.
Ratio
Express the second part of 4:2 as a fraction in simplest form
Answer: 1⁄3
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5.
Statistics
The mean of 6 numbers is 30. If 5 of them are 47, 26, 41, 42, 19, what is the missing number?
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1.
Number
Write 0.072 in standard form
Answer: 7.2 × 10-2
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2.
Algebra
Factorise: x² + 2x - 80
Answer: (x + 10)(x - 8)
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3.
Geometry
Hypotenuse = 33cm, angle = 54°. Find adjacent side. Give your answer to 2 decimal places
Answer: 19.4cm
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4.
Ratio
Black and white counters are in the ratio 4:10. What fraction of the counters are black?
Answer: 2⁄7
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5.
Statistics
Calculate the mean of: 8, 12, 16, 30, 35, 50. Give your answer to 2 decimal places
Answer: 25.17
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1.
Number
Write 4,700,000 in standard form
Answer: 4.7 × 106
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2.
Algebra
Factorise: x² + 3x - 18
Answer: (x + 6)(x - 3)
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3.
Geometry
Adjacent = 24cm, angle = 52°. Find opposite. Give your answer to 2 decimal places
Answer: 30.72cm
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4.
Ratio
Black and white beads are in the ratio 13:15. What fraction of the beads are black?
Answer: 13⁄28
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5.
Statistics
The mean of 4 numbers is 29. If 3 of them are 24, 30, 33, what is the missing number?
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1.
Number
Write 0.075 in standard form
Answer: 7.5 × 10-2
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2.
Algebra
Factorise: x² + 6x - 72
Answer: (x + 12)(x - 6)
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3.
Geometry
Hypotenuse = 21cm, angle = 62°. Find adjacent side. Give your answer to 2 decimal places
Answer: 9.86cm
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4.
Ratio
Red and blue beads are in the ratio 13:2. What fraction of the beads are red?
Answer: 13⁄15
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5.
Statistics
The mean of 6 numbers is 31. If 5 of them are 27, 47, 38, 27, 24, what is the missing number?
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1.
Number
Write 71,000,000 in standard form
Answer: 7.1 × 107
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2.
Algebra
Factorise: x² - x - 6
Answer: (x + 2)(x - 3)
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3.
Geometry
Adjacent = 30cm, angle = 36°. Find opposite. Give your answer to 2 decimal places
Answer: 21.8cm
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4.
Ratio
Simplify: 24:20:20
Answer: 6:5:5
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5.
Statistics
Calculate the mean of: 35, 17, 30, 33, 31, 32, 36, 26