Given a 3x3 matrix with very big elements, perform row operations to find a matrix with single-digit elements. Then reduce that to an upper triangular matrix, and hence find the determinant.

No caculation 'concept test' on confidence intervals.  A single multiple choice question interpreting a CI.

Modulus and argument of a single complex number $z=z_1/z_2$, where $\mathrm{Re}(z_1)=\mathrm{Im}(z_1)$ and $\mathrm{Re}(z_2)=-\mathrm{Im}(z_2)$.

Rewriting expressions of the form $n\log(a)\pm m\log(b)$ as a single logarithm.

Homework set.  Variations on problems involving single particle equilibrium.

Horizontal and vertical shifts and scales of a random cubic spline

Divisor is single digit. There is a remainder which we express as a decimal by continuing the division process. Rounding is required to one decimal place. The working suggests determining the second decimal place so the student knows whether to round up or down.

Divisor is single digit. There is a remainder which we express as a decimal by continuing the division process. Rounding is required to one decimal place. The working suggests determining the second decimal place so the student knows whether to round up or down.

Divisor is single digit. There is a remainder which we express as a decimal by continuing the division process. No rounding is required by design (another question will include rounding off).

Divisor is single digit. There is a remainder which we express as a fraction. 

The simplest case. Divisor is single digit. There is no remainder. 

No description given

Inequality involving a single absolute value, question solution uses the piecewise nature of the absolute value function.

Express $\displaystyle ax+b+  \frac{dx+p}{x + q}$ as an algebraic single fraction. 

This question is made up of 10 exercises to practice the multiplication of brackets by a single term.

Questions to test if the student knows the inverse of an even power (and how to solve equations that contain a single power that is even). 

Questions to test if the student knows the inverse of an odd power (and how to solve equations that contain a single power that is odd). 

Questions to test if the student knows the inverse of fractional power or root (and how to solve equations that contain them). 

Basically expand an expression like "5y(-2z+3)" where the student types answer into a single gap.

Express $\displaystyle \frac{a}{x + b} \pm  \frac{c}{x + d}$ as an algebraic single fraction over a common denominator. 

A single question which asks you to round to the nearest ten, hundred or thousand. 

The simplest case. Divisor is single digit. There is no remainder. 

Divisor is single digit. There is a remainder which we express as a decimal by continuing the division process. No rounding is required by design (another question will include rounding off).

Divisor is single digit. There is a remainder which we express as a decimal by continuing the division process. Rounding is required to one decimal place. The working suggests determining the second decimal place so the student knows whether to round up or down.

Divisor is single digit. There is a remainder which we express as a fraction. 

a) Multiplying decimals with a single non-zero digit. Students are told to preserve the number of decimal places (from the question to the answer). 

b) Multiplying decimals requiring the multiplication algorithm. 

a) Multiplying decimals with a single non-zero digit. Students are told to preserve the number of decimal places (from the question to the answer). 

b) Multiplying decimals requiring the multiplication algorithm. 

Given 2 or 3 fractions such as A/(2x+5), add them.

There are 5 possible versions.

No description given

This question tests the student's ability to solve Integer Programming problems applying Single State Metaheuristics.