Lois's copy of Binary to Decimal

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Contributors

Lois Rollings

History

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Lois Rollings 8 years, 8 months ago

Published this.

○

Lois Rollings 9 years, 6 months ago

Created this as a copy of Binary to Decimal.

Name	Status	Author	Last Modified
Decimal to Binary 1	draft	Clodagh Carroll	10/10/2016 10:26
Binary to Decimal	draft	Clodagh Carroll	10/10/2016 10:13
Lois's copy of Binary to Decimal	draft	Lois Rollings	20/09/2016 10:57
Binary to Decimal	Ready to use	Julie Crowley	07/10/2016 21:25
Decimal to Binary	Ready to use	Julie Crowley	12/10/2016 09:58
Ioannis's copy of Lois's copy of Binary to Decimal	Needs to be tested	Ioannis Lignos	28/10/2018 20:17
Simon's copy of Binary to Decimal	draft	Simon Thomas	07/03/2019 11:26
Simon's copy of Binary to Decimal	draft	Simon Thomas	07/03/2019 11:16
Simon's copy of Decimal to Binary	draft	Simon Thomas	07/03/2019 12:12
Simon's copy of Decimal to Binary 1	draft	Simon Thomas	07/03/2019 12:14
Binary to Decimal Worksheet	draft	David Copeland	02/05/2019 09:10
Pete's copy of Binary to Decimal Worksheet	draft	Pete Dwyer	03/07/2019 11:24

There are 9 other versions that do you not have access to.

Question statement

Convert the binary number $\var{b1}\var{b2}\var{b3}\var{b4}\var{b5}\var{b6}\var{b7}\var{b8}$ to one written in decimal (base 10).

Give any introductory information the student needs.

			Name	Type	Generated Value

b1	integer	0
b2	integer	1
b3	integer	0
b4	integer	0
b5	integer	1
b6	integer	1
b7	integer	0
b8	integer	1

Automatically regenerate variables?

Name

Data type

Value

A random number between and (inclusive) with step size

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `integer`

→ Used by:

This variable doesn't seem to be used anywhere.

Advice

When writing numbers in our normal base 10 (decimal) system recall that each place in the number represents a power of 10 -- $1, 10, 10^2=100, 10^3 = 1000$ etc.

In binary each place represents a power of 2. So reading from the right the places represent $1, 2, 2^2=4, 2^3 = 8, 2^4 = 16$ etc.

A 1 in the place indicates that it is 'switched on' and a 0 that it is 'switched off'.

For instance the binary number $1011_2$ represents $(1 \times 8) + (1 \times 2) + (1 \times 1) =11_{10}$ .

See http://www.purplemath.com/modules/numbbase.htm for more on binary numbers.

Give a worked solution to the whole question.

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Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Lois Rollings 8 years, 8 months ago

Lois Rollings 9 years, 6 months ago

Error in variable testing condition

Error

Warning

Generated value: `integer`

Parts

Number entry

Advanced settings

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Error

Lois's copy of Binary to Decimal

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Lois Rollings 8 years, 8 months ago

Lois Rollings 9 years, 6 months ago

Error in variable testing condition

Error

Warning

Generated value: integer

Parts

Number entry

Advanced settings

Generated value: `integer`