Change pack
Lintel
Apr 27 - May 3
25 questions
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1.
Number
Express 100 as a product of prime factors
Answer: 2² × 5²
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2.
Algebra
Solve: 2x + 3y = 20 and 3x - y = 19
Answer: x = 7, y = 2
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3.
Geometry
Find b if a = 13cm and c = 21cm
Answer: 16.49cm
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4.
Ratio
a:b is 2:3 and b:c is 4:3. Find a:b:c.
Answer: 8:12:9
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5.
Statistics
A fair coin is flipped 186 times. How many heads would you expect?
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1.
Number
Express 200 as a product of prime factors
Answer: 2³ × 5²
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2.
Algebra
Solve: 2x + 3y = 30 and 3x - y = 12
Answer: x = 6, y = 6
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3.
Geometry
Find b if a = 15cm and c = 25cm
Answer: 20cm
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4.
Ratio
a:b is 3:4 and b:c is 1:2. Find a:b:c.
Answer: 3:4:8
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5.
Statistics
A fair coin is flipped 120 times. How many heads would you expect?
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1.
Number
Write 72 as a product of its prime factors
Answer: 2³ × 3²
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2.
Algebra
Solve: 4x + 3y = 38 and 3x + 3y = 30
Answer: x = 8, y = 2
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3.
Geometry
Calculate the missing side: a = 24cm, c = 29cm
Answer: 16.3cm
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4.
Ratio
a:b is 3:2 and b:c is 1:2. Find a:b:c.
Answer: 9:6:12
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5.
Statistics
A bag has 3 red out of 12 balls. If you pick 54 times (with replacement), how many times would you expect red?
Answer: 13.5
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1.
Number
Write 90 as a product of its prime factors
Answer: 2 × 3² × 5
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2.
Algebra
Solve: 2x + 3y = 12 and 4x + 4y = 20
Answer: x = 3, y = 2
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3.
Geometry
Find b if a = 11cm and c = 19cm
Answer: 15.49cm
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4.
Ratio
a:b is 2:1 and b:c is 4:5. Find a:b:c.
Answer: 8:4:5
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5.
Statistics
A bag has 4 red out of 11 balls. If you pick 78 times (with replacement), how many times would you expect red?
Answer: 28.4
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1.
Number
Express 180 as a product of prime factors
Answer: 2² × 3² × 5
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2.
Algebra
Solve: 2x + 3y = 22 and 3x - y = 22
Answer: x = 8, y = 2
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3.
Geometry
Calculate the missing side: a = 22cm, c = 40cm
Answer: 33.4cm
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4.
Ratio
a:b is 2:3 and b:c is 1:3. Find a:b:c.
Answer: 4:6:18
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5.
Statistics
A bag has 4 red out of 12 balls. If you pick 132 times (with replacement), how many times would you expect red?