13 results authored by Lauren Richards - search across all users.

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• Question

Rationalise the denominator with increasingly difficult examples involving compound denominators.

• Question

Two trains arrive at the same platform with different periods. Compute the LCM of the two periods to find the time they clash.

This is a context question testing the student's ability to identify the lowest common multiple of two integer values which are not multiples of each other.

• Question

This question tests the student's ability to identify equivalent fractions through spotting a fraction which is not equivalent amongst a list of otherwise equivalent fractions. It also tests the students ability to convert mixed numbers into their equivalent improper fractions. It then does the reverse and tests their ability to convert an improper fraction into an equivalent mixed number.

• Decimals to fractions
Question

Identify well-known fractional equivalents of decimals. Convert obscure decimals and recurring decimals into fractions.

• Surds simplification
Question

This question tests the student's understanding of what is and is not a surd, and on their simplification of surds.

• Question

This question tests the student's ability to solve simple linear equations by elimination. Part a) involves only having to manipulate one equation in order to solve, and part b) involves having to manipulate both equations in order to solve.

• Question

Solve a linear equation of the form $ax+b = c$, where $a$, $b$ and $c$ are integers.

The answer is always an integer.

• Question

A simple situational question about a box of chocolates, asking how many of each type there are, what percentage of the box they represent, the probability of picking one and ratios of different types.

• Question

This is a simple question testing the student on their ability to calculate the lowest common multiple of two integers which are:

Part a) - coprime;

Part b) - where the greatest common divisor between the two integers is greater than one and not equal to either given number; and

Part c) - where one of the integer is a multiple of the other.

• Question

Several problems involving the multiplication of fractions, with increasingly difficult examples, including a mixed fraction and a squared fraction. The final part is a word problem.

• Question

This question tests the student's ability to identify the factors of some composite numbers and the highest common factors of two numbers.

• Division of fractions