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

https://numbas.mathcentre.ac.uk/question/22784/decimals-to-fractions/ by Lauren Richards

Translated to German.

This easy exam is intended to be used by administrators to check the integration of Numbas with a leaarning environment.

DIAGNOSYS is a knowledge-based test of mathematics background knowledge for first-year university students, created by John Appleby at Newcastle University.

The questions have been translated directly into Numbas, with as few changes as possible.

Decide whether statements about square and cube numbers are always true, sometimes true or never true.

German translation of https://numbas.mathcentre.ac.uk/question/22768/always-sometimes-or-never-square-and-cube-numbers/ von Stanislav Duris.

Schreibe $\displaystyle \frac{a} {b + \frac{c}{d}}$ als einen gekürzten Bruch $\displaystyle \frac{p}{q}$ mit ganzen Zahlen $p$ und $q$.

Angepasste, übersetzte und erweiterte Version von https://numbas.mathcentre.ac.uk/question/11701/simplifying-fractions/ von Newcastle University Mathematics and Statistics.

Some questions for our open day, to give students a first taste of Numbas.

This is a copy of a question from the Numbas demos project, with references to the editor removed.

The student is shown a plot of a mystery function. They can enter values of $x$ check, within the bounds of the plot.

They're asked to give the formula for the function, and then asked for its value at a very large value of $x$.

A plot of the student's function updates automatically as they type. Adaptive marking is used for the final part to award credit if the student gives the right value for their incorrect function.

A practice test to get used to the NUMBAS environment.

Details on inputting numbers into Numbas. (German translation)

Dealing with functions in Numbas. (Translation to German.)

Inputting ratios of algebraic expressions. (Translation to German)

Information on inputting powers

6 questions which introduce the student to the Numbas system.

rebelmaths

6 questions which introduce the student to the Numbas system.

rebelmaths

6 questions which introduce the student to the Numbas system.

rebelmaths

Students are supposed to use Excel (or similar) to find the answers (e.g., enter coordinates of two points then plot and add trendline).

Uses an embedded Geogebra graph of a line $y=mx+c$ with random coefficients set by NUMBAS.

This uses an embedded Geogebra graph of a line $y=mx+c$ with random coefficients set by NUMBAS.

A demo of the matrix entry part and its options.

This question is a variation on another version which asks the student to find the height of a bridge arch and width of the river given a formula for the arch of the bridge (also available in the Numbas database)

This easy question is intended to be used by administrators to test the integration of Numbas with a learning environment.

Entering numbers and algebraic symbols  in Numbas. (German translation)

A portfolio of NUMBAS questions created for first year Natural Sciences students. The questions cover the topics: 

• Linear functions
• Quadratic functions
• Differentiation
• Integration
• Explonatial and logarithms 
• Further differentiation
• Further Integration
• Trigonometric Functions

Oefeningen:

BASIS: Maak een extra "part" aan, waar om het product van de twee breuken gevraagd wordt.

BASIS: Zoek uit waar typische_fout voor dient (bij de variabelen) en hoe die typische fout dan effectief gesignaleerd wordt.

GEMIDDELD: Zorg dat geen/enkel (jouw keuze) noemers voorkomen die geen gemeenschappelijke deler hebben. (Hint: gcd(a,b) kan een hulp zijn, met een for-loop.)

Quadratic factorisation that does not rely upon pattern matching.

One could also use the pattern matching syntax to check automatically; this is programatically harder.

Some questions to show off features of Numbas, linked from the Numbas homepage.

Inputting algebraic expressions into Numbas.