Keystones Bedrock — Jan 1 - 7 | Maths Vault

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Bedrock Jan 1 - 7 25 questions

Monday 27 May 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: ⁶⁄₉ + ¹⁄₉

Answer: ⁷⁄₉
2. Algebra

Simplify: 8x + 5x

Answer: 13x
3. Geometry

Opposite = 6cm, hypotenuse = 12cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 8:12

Answer: 2:3
5. Statistics

Find the range of: 14, 9, 33, 36, 7

Answer: 29

Tuesday 28 May 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: 27 + 13

Answer: 27 + 13 = 40
2. Algebra

Find the next term: 7, 9, 11, 13, ...

Answer: 15
3. Geometry

Opposite = 12cm, hypotenuse = 13.9cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Calculate 10% of 53

Answer: 5.3
5. Statistics

Find the mean of: 5, 3, 9, 18, 19

Answer: 10.8

Wednesday 29 May 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: 31 + 72

Answer: 31 + 72 = 103
2. Algebra

Factorise: 15x + 12

Answer: 3(5x + 4)
3. Geometry

Opposite = 9cm, hypotenuse = 18cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 14:12

Answer: 7:6
5. Statistics

What is the probability of getting heads when flipping a fair coin?

Answer: ¹⁄₂

Thursday 30 May 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: 91 + 64

Answer: 91 + 64 = 155
2. Algebra

Factorise: 14x + 14

Answer: 2(7x + 7)
3. Geometry

Opposite = 8cm, hypotenuse = 11.3cm. Find the angle

Answer: 45° (approximately)
4. Ratio

Calculate 25% of 42

Answer: 10.5
5. Statistics

Find the range of: 18, 12, 17, 16, 23

Answer: 11

Friday 31 May 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: 47 + 26

Answer: 47 + 26 = 73
2. Algebra

Factorise: 18x + 30

Answer: 6(3x + 5)
3. Geometry

Opposite = 9cm, hypotenuse = 18cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Simplify the ratio 18:9

Answer: 2:1
5. Statistics

Find the mean of: 13, 19, 12, 7

Answer: 12.75