Decimal words

Decimal words

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This task is about choosing the right words to describe decimal numbers.
 
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Choose the correct word to complete each of the following statements about decimal numbers.

Question 1Change answer

a)   7.3             Seven and three onestenthshundredthsthousandthsmillionths

Question 1Change answer

b)  7.187          Seven and one hundred and eighty seven onestenthshundredthsthousandthsmillionths

Question 1Change answer

c)  7.96              Seven and ninety-six onestenthshundredthsthousandthsmillionths

Question 1Change answer

d)  7.004              Seven and four onestenthshundredthsthousandthsmillionths

Question 1Change answer

e)  7.60         Seven and sixty onestenthshundredthsthousandthsmillionths
Task administration: 
This task can be completed with pencil and paper or online (with auto marking displayed to students).
Level:
3
Curriculum info: 
Maths, Number and Algebra, Number Knowledge
Keywords: 
decimals, place value
Description of task: 
Students select and then write the appropriate words for numbers in decimal form.
Answers/responses: 
 

Y6 (11/2003)

a)

b)

c)

d)

e)

Tenths

Thousandths

Hundredths

Thousandths

Hundredths

all correct – difficult

4 correct – difficult

2-3 correct – moderate
Diagnostic and formative information: 
 

Student response

Likely misconception

a)

b)

c)

e)

Ones

Hundredths

Tenths

Tenths

Place Value Error

Students are often out by 1 place value, generally giving it one place to the left of (i.e. bigger) than it is.

Tenths given as ones. Thousandths given as hundredths. Hundredths given as tenths. Hundredths given as tenths.

NOTE: Numbers with zeros in them proved harder for students.