Numbers IV: Rounding decimals to whole numbers and decimal places

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Contributors

Nasir Firoz Khan

History

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Nasir Firoz Khan 8 years, 7 months ago

Created this as a copy of Decimals: rounding.

Name	Status	Author	Last Modified
Decimals: rounding	Ready to use	Ben Brawn	07/09/2018 15:31
Numbers IV: Rounding decimals to whole numbers and decimal places	draft	Nasir Firoz Khan	01/08/2016 20:11
Numbers IV: Rounding decimals to whole numbers and decimal places	Doesn't work	Nasir Firoz Khan	10/08/2016 16:02
Rounding to decimals places	Ready to use	Sarah Turner	15/08/2016 19:38
Jinhua's copy of Numbers IV: Rounding decimals to whole numbers and decimals (version 2)	draft	Jinhua Mathias	28/08/2024 12:15
Jinhua's copy of Numbers IV: Rounding decimals to whole numbers and decimals (version 2)	draft	Jinhua Mathias	28/08/2024 12:15
Merryn's copy of Decimals: rounding	Ready to use	Merryn Horrocks	07/03/2024 00:57

There are 7 other versions that do you not have access to.

Question statement

To round decimals to whole numbers, we look at first decimal place and if its 5 or more, we round up or else we round it down by 1.

In the following questions, round the following decimals to the nearest whole number

Give any introductory information the student needs.

			Name	Type	Generated Value

whole1	number	86.17
whole2	number	97.93
whole3	number	56.5
wholelist	list	[ 56.5, 97.93, 86.17 ]
two1	number	185.9282
two2	number	182.8646
two3	number	157.22501
twolist	list	List of 3 items

Automatically regenerate variables?

Name

Data type

Value

xxxxxxxxxx
 
random(2..187)+random(list(0.0..0.4#0.1))+random(list(0.05..0.09#0.01))

JME function reference

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: `number`

86.17

This variable doesn't seem to be used anywhere.

Parts

Part a) Gap-fill
1. Gap Gap 0. Number entry
  Add
2. Gap Gap 1. Number entry
  Add
3. Gap Gap 2. Number entry
  Add
1. Step Information only
Part b) Gap-fill
1. Gap Gap 0. Number entry
  Add
2. Gap Gap 1. Number entry
  Add
3. Gap Gap 2. Number entry
  Add
1. Step Information only

Gap-fill

Ask the student a question, and give any hints about how they should answer this part.

Round the following decimals to the nearest whole number (0 decimal places):

{wholelist[0]}=Gap 0.

{wholelist[1]}=Gap 1.

{wholelist[2]}=Gap 2.

Advice

Steps to follow:

1. Retain the correct number of decimal places (e.g. 3 for thousandths, 0 for whole numbers)
2. If the next decimal place value is 5 or more, increase the value in the last retained decimal place by 1

Example-

134.9 rounded to tens is 130 as the next digit (4) is less than 5

12,690 rounded to thousands is 13,000 as the next digit (6) is 5 or more

15.239 rounded to units is 15 as the next digit (2) is less than 5

For more help, check this video -

Give a worked solution to the whole question.

Use this tab to check that this question works as expected.

There was an error which means the tests can't run:

Part	Test	Passed?
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Information only
Gap-fill
Gap-fill		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Number entry
Number entry		Hasn't run yet
Information only

This question is not used in any exams.

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Numbers IV: Rounding decimals to whole numbers and decimal places

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Nasir Firoz Khan 8 years, 7 months ago

Error in variable testing condition

Error

Warning

Generated value: `number`

Parts

Gap-fill

Steps to follow:

1. Retain the correct number of decimal places (e.g. 3 for thousandths, 0 for whole numbers)
2. If the next decimal place value is 5 or more, increase the value in the last retained decimal place by 1

Example-

134.9 rounded to tens is 130 as the next digit (4) is less than 5

12,690 rounded to thousands is 13,000 as the next digit (6) is 5 or more

15.239 rounded to units is 15 as the next digit (2) is less than 5

Loading...

Error

Numbers IV: Rounding decimals to whole numbers and decimal places

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Nasir Firoz Khan 8 years, 7 months ago

Error in variable testing condition

Error

Warning

Generated value: number

Parts

Gap-fill

Steps to follow:

1. Retain the correct number of decimal places (e.g. 3 for thousandths, 0 for whole numbers) 2. If the next decimal place value is 5 or more, increase the value in the last retained decimal place by 1

Example-

134.9 rounded to tens is 130 as the next digit (4) is less than 5

12,690 rounded to thousands is 13,000 as the next digit (6) is 5 or more

15.239 rounded to units is 15 as the next digit (2) is less than 5

Generated value: `number`

1. Retain the correct number of decimal places (e.g. 3 for thousandths, 0 for whole numbers)
2. If the next decimal place value is 5 or more, increase the value in the last retained decimal place by 1