Rounding Decimals (2)

In this worksheet, students must round numbers with one decimal place to the nearest whole number. Numbers up to 100 are used.

Key stage:  KS 2

Curriculum topic:   Number: Fractions and Decimals

Curriculum subtopic:   Round One Decimal Place Up/Down

Difficulty level:

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.

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.

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.

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:

13.6

Round this decimal number to the nearest whole number:

23.1

Round this decimal number to the nearest whole number:

46.4

Round this decimal number to the nearest whole number:

66.5

Round this decimal number to the nearest whole number:

48.6

Round this decimal number to the nearest whole number:

91.2

Round this decimal number to the nearest whole number:

74.5

Round this decimal number to the nearest whole number:

97.4

Round this decimal number to the nearest whole number:

79.5

Round this decimal number to the nearest whole number:

50.8

• Question 1

Round this decimal number to the nearest whole number:

13.6

14
EDDIE SAYS
13.6 is between 13 and 14 but closer to 14.
• Question 2

Round this decimal number to the nearest whole number:

23.1

23
EDDIE SAYS
23.1 is between 23 and 24 but closer to 23.
• Question 3

Round this decimal number to the nearest whole number:

46.4

46
EDDIE SAYS
46.4 is between 46 and 47 but closer to 46.
• Question 4

Round this decimal number to the nearest whole number:

66.5

67
EDDIE SAYS
66.5 is halfway between 66 and 67 so we round up to 67.
• Question 5

Round this decimal number to the nearest whole number:

48.6

49
EDDIE SAYS
48.6 is between 48 and 49 but closer to 49.
• Question 6

Round this decimal number to the nearest whole number:

91.2

91
EDDIE SAYS
91.2 is between 91 and 92 but closer to 91.
• Question 7

Round this decimal number to the nearest whole number:

74.5

75
EDDIE SAYS
74.5 is halfway between 74 and 75 so we round up to 75.
• Question 8

Round this decimal number to the nearest whole number:

97.4

97
EDDIE SAYS
97.4 is between 97 and 98 but closer to 97.
• Question 9

Round this decimal number to the nearest whole number:

79.5

80
EDDIE SAYS
79.5 is halfway between 79 and 80 so we round up to 80.
• Question 10

Round this decimal number to the nearest whole number:

50.8

51
EDDIE SAYS
50.8 is between 50 and 51 but closer to 51.
---- OR ----

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