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Rounding Decimals (1)

In this worksheet, students must round numbers with one decimal place to the nearest whole number.

'Rounding Decimals (1)' worksheet

Key stage:  KS 2

Curriculum topic:  Number: Fractions and Decimals

Curriculum subtopic:  Round One Decimal Place Up/Down

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

Numbers with one decimal place have one digit after the decimal point.

To round one of these numbers to the nearest whole number, think of a number line.

 

Remember that halfway numbers such as 7.5 or 8.5 or 14.5 always round UP.

 

Numbers ending in 1, 2, 3 and 4 round DOWN.

Numbers above this, such as 5, 6, 7, 8 and 9 round UP.

 

 

 

Example 1

Round 12.3 to the nearest whole number.

 

Answer

12.3 is between 12 and 13 and is closer to 12.

12.3 rounds down to 12.

 

 

Example 2

Round 10.8 to the nearest whole number.

 

Answer

10.8 is between 10 and 11 and is closer to 11.

10.8 rounds up to 11.

 

 

Example 3

Round 16.5 to the nearest whole number.

 

Answer

16.5 is halfway between 16 and 17 and so we round up.

16.5 rounds up to 17.

Round this decimal number to the nearest whole number:

3.8

Round this decimal number to the nearest whole number:

3.1

Round this decimal number to the nearest whole number:

6.3

Round this decimal number to the nearest whole number:

6.5

Round this decimal number to the nearest whole number:

8.6

Round this decimal number to the nearest whole number:

1.1

Round this decimal number to the nearest whole number:

4.5

Round this decimal number to the nearest whole number:

7.4

Round this decimal number to the nearest whole number:

9.5

Round this decimal number to the nearest whole number:

0.8

  • Question 1

Round this decimal number to the nearest whole number:

3.8

CORRECT ANSWER
4
EDDIE SAYS
3.8 is between 3 and 4 but closer to 4.
  • Question 2

Round this decimal number to the nearest whole number:

3.1

CORRECT ANSWER
3
EDDIE SAYS
3.1 is between 3 and 4 but closer to 3.
  • Question 3

Round this decimal number to the nearest whole number:

6.3

CORRECT ANSWER
6
EDDIE SAYS
6.3 is between 6 and 7 but closer to 6.
  • Question 4

Round this decimal number to the nearest whole number:

6.5

CORRECT ANSWER
7
EDDIE SAYS
6.5 is halfway between 6 and 7 so we round up to 7.
  • Question 5

Round this decimal number to the nearest whole number:

8.6

CORRECT ANSWER
9
EDDIE SAYS
8.6 is between 8 and 9 but closer to 9.
  • Question 6

Round this decimal number to the nearest whole number:

1.1

CORRECT ANSWER
1
EDDIE SAYS
1.1 is between 1 and 2 but closer to 1.
  • Question 7

Round this decimal number to the nearest whole number:

4.5

CORRECT ANSWER
5
EDDIE SAYS
4.5 is halfway between 4 and 5 so we round up to 5.
  • Question 8

Round this decimal number to the nearest whole number:

7.4

CORRECT ANSWER
7
EDDIE SAYS
7.4 is between 7 and 8 but closer to 7.
  • Question 9

Round this decimal number to the nearest whole number:

9.5

CORRECT ANSWER
10
EDDIE SAYS
9.5 is halfway between 9 and 10 so we round up to 10.
  • Question 10

Round this decimal number to the nearest whole number:

0.8

CORRECT ANSWER
1
EDDIE SAYS
0.8 is between 0 and 1 but closer to 1.
---- OR ----

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