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Round a Decimal Number to 1 Decimal Place

In this worksheet, students round decimal numbers to 1 decimal place.

'Round a Decimal Number to 1 Decimal Place' worksheet

Key stage:  KS 3

Curriculum topic:  Number

Curriculum subtopic:  Round/Approximate Numbers Appropriately

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

In this worksheet, we will round a decimal number to 1 decimal place.

 

Method

To round a decimal to 1 decimal place, we check the digit in the 2nd decimal place (i.e. the hundredths column).

 

If the hundredths digit is 5 or more, round UP.

If the hundredths digit is 4 or less, round DOWN.

 

Examples

19.786 is between the 1 decimal place numbers 19.7 and 19.8

The 8 hundredths tell us to round UP to 19.8

19.786 rounds up to 19.8 to 1 dp

 

19.049 is between the 1 decimal place numbers 19.0 and 19.1

The 4 hundredths tell us to round DOWN to 19.0

19.049 rounds down to 19.0 to 1 dp

Round the following number to one decimal place.

41.7133

Round the following number to one decimal place.

76.9054

Round the following number to one decimal place.

85.8452

Round the following number to one decimal place.

44.8741

Round the following number to one decimal place.

67.977

Round the following number to one decimal place.

40.852

Round the following number to one decimal place.

99.372

Round the following number to one decimal place.

43.0158

Round the following number to one decimal place.

29.7983

Round the following number to one decimal place.

99.9804

  • Question 1

Round the following number to one decimal place.

41.7133

CORRECT ANSWER
41.7
  • Question 2

Round the following number to one decimal place.

76.9054

CORRECT ANSWER
76.9
  • Question 3

Round the following number to one decimal place.

85.8452

CORRECT ANSWER
85.8
  • Question 4

Round the following number to one decimal place.

44.8741

CORRECT ANSWER
44.9
  • Question 5

Round the following number to one decimal place.

67.977

CORRECT ANSWER
68.0
EDDIE SAYS
The answer must have one decimal place, so this is not the same as 68
  • Question 6

Round the following number to one decimal place.

40.852

CORRECT ANSWER
40.9
  • Question 7

Round the following number to one decimal place.

99.372

CORRECT ANSWER
99.4
  • Question 8

Round the following number to one decimal place.

43.0158

CORRECT ANSWER
43.0
  • Question 9

Round the following number to one decimal place.

29.7983

CORRECT ANSWER
29.8
  • Question 10

Round the following number to one decimal place.

99.9804

CORRECT ANSWER
100.0
---- OR ----

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