Johan Maertens

Some questions that use the quantities extension to handle units.

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Show a list of the factors of a number.

Works by testing each number up to $n$ for divisibility by $n$, so won't do well with really big numbers. Certainly fast enough for numbers up to 4 or 5 digits.

Fiddling about with a new extension providing a "quantity" data type: an amount with units.

Factoring a quadratic equation

Examples of the following custom part types: Yes/no, List of numbers, Give a numerical input for an expression, Number entry modulo.

Numbas can now understand and use several different styles of notation for numbers.

This question shows off all the supported styles, both for display in text and in the answers to number entry parts.

Lay out gapfills so the student has to enter either the numerator or denominator of a fraction.

Some custom CSS restyles the matrix input so it looks like a fraction, with input boxes on top and bottom.

Ideally, there should be a fraction input part type, or an option for the number entry part to display a fraction input.

9 questions: Expanding out expressions such  $(ax+b)(cx+d)$ etc.

9 questions: Expanding out expressions such  $(ax+b)(cx+d)$ etc.

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

Multiples, factors, lowest common multiples and highest common factors.

Vierkantswortels van van 0 t.e.m. 225 oefenen. 

Kwadraten van 0 t.e.m. 15 oefenen. 

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This question asks you to place a point on a number line. The number is an integer.

rebelmaths

Decimal Places and Significant Figures

rebelmaths

Calculate the volume of different 3D shapes, given the units and measurements required. The formulae for the volume of each shape are available as steps if required.

Calculate the volume of different 3D shapes, given the units and measurements required. The formulae for the volume of each shape are available as steps if required.

This question tests the students ability to calculate the area of different 2D shapes given the units and measurements required. The formulae for the areas are available if required but students are encouraged to try to remember them themselves.

The shapes are: a rectangle, a parallelogram, a right-angled triangle, and a trapezium.

Author of gif: Picknick
https://commons.wikimedia.org/wiki/File:Parallelogram_area_animated.gif
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

Given the first few terms of an arithmetic sequence, write down its formula, then find a couple of particular terms.

Construct a line through two points in a GeoGebra worksheet. Change the line by setting the positions of the two points when the worksheet is embedded into the question.

This question tests a student's ability to raise a negative base to a negative exponent.

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This question allows you to practice converting between decimals and fractions

This is a set of questions designed to help you praction adding, subtracting, multiplying and dividing fractions.

All of these can be done without a calculator

These questions are asking you to use a non-calculator method to work out a percentage amount of a value.