Keystones Bedrock — Jan 1 - 7 | Maths Vault

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Bedrock Jan 1 - 7 25 questions

Monday 22 April 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: ²⁄₇ + ³⁄₇

Answer: ⁵⁄₇
2. Algebra

Simplify: 8x + 4x

Answer: 12x
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Calculate 10% of 112

Answer: 11.2
5. Statistics

Find the mean of: 2, 11, 3, 10

Answer: 6.5

Tuesday 23 April 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: 65 + 81

Answer: 65 + 81 = 146
2. Algebra

Simplify: 5x + 2x

Answer: 7x
3. Geometry

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

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 28:20

Answer: 7:5
5. Statistics

Find the mean of: 20, 5, 18

Answer: 14.333333333333

Wednesday 24 April 2024

Keystones #1 · Five questions · Open this day only

1. Number

40000

Answer: 4 × 10⁴
2. Algebra

Factorise: 18x + 9

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

Find the area of a circle with radius 4cm

Answer: 50.27cm²
4. Ratio

Simplify the ratio 8:12

Answer: 2:3
5. Statistics

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

Answer: ¹⁄₂

Thursday 25 April 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: 49 + 32

Answer: 49 + 32 = 81
2. Algebra

Find the next term: 18, 26, 34, 42, ...

Answer: 50
3. Geometry

Opposite = 15cm, hypotenuse = 30cm. Find the angle

Answer: 30° (approximately)
4. Ratio

Calculate 25% of 45

Answer: 11.25
5. Statistics

Find the mean of: 9, 10, 4

Answer: 7.6666666666667

Friday 26 April 2024

Keystones #1 · Five questions · Open this day only

1. Number

Calculate: ³⁄₇ + ²⁄₇

Answer: ⁵⁄₇
2. Algebra

Solve: x + 7 = 20

Answer: x = 13
3. Geometry

Opposite = 5cm, hypotenuse = 5.8cm. Find the angle

Answer: 60° (approximately)
4. Ratio

Simplify the ratio 18:12

Answer: 3:2
5. Statistics

Find the mean of: 5, 15, 14, 10

Answer: 11