GCSE Maths - Foundation Paper 1 Revision

What is 1/10 expressed as a percentage?

What is 0.9 expressed as a percentage?

What is 8/10 simplified to its lowest terms?

• 4/5

• 2/5

• 8/10

• 1/5

Answer explanation

To simplify 8/10 to its lowest terms, divide both numerator and denominator by their greatest common factor, which is 2. This results in 4/5, making it the correct choice.

Simplify the expression: 7y + 4x - 2y + 3x.

• 5y + 7x

• 9y + 7x

• 5y - x

• 10y + x

Answer explanation

Combine like terms by adding the coefficients of y and x separately: 7y - 2y = 5y, 4x + 3x = 7x. Therefore, the simplified expression is 5y + 7x.

Arrange the following numbers in ascending order: 7.1, 7.11, 7.01.

• 7.01
• 7.1
• 7.11

What is the result of the calculation 46 - 2.5 x 4?

• 36

• 38

• 34

• 32

Answer explanation

To calculate 46 - 2.5 x 4, first multiply 2.5 by 4 to get 10. Then subtract 10 from 46 to get the result of 36.

What is the probability of rolling an odd number with an ordinary fair dice?

• 1/2

• 1/3

• 1/6

• 2/3

Answer explanation

The probability of rolling an odd number on a fair dice is 3 out of 6, which simplifies to 1/2. Therefore, the correct answer is 1/2.

What is the probability of rolling a number greater than 6 with an ordinary fair dice?

• 0

• 1/6

• 1/2

• 1

Answer explanation

The probability of rolling a number greater than 6 with a fair dice is 0, as the maximum number on a standard dice is 6.

What is the probability of rolling a 3 with an ordinary fair dice?

• 1/6

• 1/3

• 1/2

• 0

Answer explanation

The probability of rolling a 3 on a fair dice is 1/6 since there are 6 possible outcomes (1, 2, 3, 4, 5, 6) and only one of them is a 3.

What is the probability of randomly selecting a blue disc from a bag containing 10 discs, where 5 are red, 3 are green, and the rest are blue?

• 1/5

• 1/10

• 2/10

• 1/2

Answer explanation

The probability of selecting a blue disc is the number of blue discs divided by the total number of discs, which is 2/10 or 1/5.