1072 results for "number".
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The student must calculate the number of digits a given decimal number would have when written in a different base. Alternative answers catch some common mal-rules and give appropriate feedback.
Based on table 2 from "diagnosing student errors in e-assessment questions" by Philip Walker, D. Rhys Gwynllyw and Karen L. Henderson.
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A demonstration of the use of alternative answers to accept more than one correct answer. The student must write a number whose square is $n^2$. Both $n$ and $-n$ are accepted.
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The student is asked to identify the number of roots of a quadratic equation, and then to give the root or roots. There is a hint to calculate the discriminant, and then further hints with the formula for the discriminant and the decision to make based on its value.
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An example of an iterative procedure: the student must factorise a given number. At each step, they're asked if the number is factorised. If not, they must give a prime factor. If it is fully factorised, they can then work out the number of factors of the number.
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An interactive experiment about probability: the student must first 'design' the experiment by deciding how many times they're going to flip a coin, and define what number of heads would make them believe the coin is biased. They must then enter the results of their coin flips, calculate the percentage of heads, and finally decide if the coin is biased, using the condition they specified in the design stage. There are optional hints at each stage.
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The student must write a number to 2 decimal places. The number has a trailing zero, and an alternative answer is used to detect when the student omits it. If the student omits the trailing zero, they're offered an optional hint.
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The student is asked to add two four-digit numbers. Alternative answers are set up with progressively expanding ranges of accepted values, so the student gets more marks for getting closer to the true answer.
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Question in Transition to university
Given some numbers in standard index form, convert to decimal form.
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Question in Goutham's workspace
No description given
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Exam (16 questions) in Kariane's workspaceComplex number quiz
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Exam (16 questions) in Kariane's workspace
No description given
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Display a number as a mixed fraction when appropriate, using the mixedFractions display option.
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A few quadratic equations are given, to be solved by completing the square. The number of solutions is randomised.
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Display a number like "1234" as "1,234".
This question is out of date: the formatnumber function can format numbers using several different notational styles.
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Use the numbro.js extension to format numbers and currencies.
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Question in MY QUESTIONS
Given two complex numbers, find by inspection the one that is a root of a given quartic real polynomial and hence find the other roots.
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Question in Transition to university
Multiply two numbers in standard form, then divide two numbers in standard form.
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Exam (9 questions) in Victoria's workspacePrior knowledge audit covering basic number concepts necessary for GCSE learning.
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Question in Madalyn's workspace
Break down the following numbers into component parts according to place value:
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Question in Maths supportCalculating the LCM and HCF of numbers by using prime factorisation.
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Question in Maths supportWriting numbers as a product of prime factors
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Question in Shaheen's workspace
Find modulus and argument of two complex numbers.
Then use De Moivre's Theorem to find powers of the complex numbers.
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Exam (5 questions) in Shaheen's workspace
AEP Y1 - Engineering Mathematics Assessment 1(i)
Note that part(i) counts 20% towards the final Y1 Engineering Mathematics module grade.
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Exam (5 questions) in Shaheen's workspace
AEP Y1 - Engineering Mathematics Assessment 1(i)
Note that part(i) counts 20% towards the final Y1 Engineering Mathematics module grade.
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Exam (5 questions) in Shaheen's workspace
AEP Y1 - Engineering Mathematics Assessment 1(i)
Note that part(i) counts 20% towards the final Y1 Engineering Mathematics module grade.
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Question in 1010ENG/1201SCG Complex numbers
Practice to decide which quadrant a complex number lies in.
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Question in 1010ENG/1201SCG Complex numbers
Practice to decide which quadrant a complex number lies in.
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Exam (5 questions) in Shaheen's workspace
You are allowed 38 minutes to complete this test.
You may use rough paper for your calculations.
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Exam (5 questions) in Shaheen's workspace
You are allowed 31 minutes to complete this test.
You may use rough paper for your calculations.
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Question in Shaheen's workspace
Two parts.
