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33 is a whole number. 3.3 is a decimal number.

Decimal Numbers (Easy)

Explore decimal numbers in this 11 Plus Maths quiz. Learn how they connect to money, measurements, and everyday decisions when comparing values.

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Fascinating Fact:

The cost of a pizza at £9.99 looks cheaper than £10.00, but it is only smaller by one penny, proof that decimals fool shoppers every day.

In 11 Plus Maths, decimals are used to show parts of whole numbers. Pupils learn to read, compare, and round decimals when solving money and measurement problems.

Key Terms

Decimal: A number that includes a point to separate whole numbers from parts of a whole.
Place Value: The position of each digit determines its value, such as tenths or hundredths.
Round: To make a number simpler while keeping its value close to the original.

Want to understand what’s tested in the 11 Plus exams? Visit our Guide to 11 Plus Subjects for Parents .

Frequently Asked Questions (Click to see answers)

What are decimal numbers?

Decimal numbers show parts of a whole using a point, such as 0.5 or 2.75. They are common in money, weights, and measurements.

How do you compare decimal numbers?

Line up the decimal points and compare digits from left to right. Add zeros if needed so each number has the same number of decimal places.

Why are decimals important in maths?

Decimals make it easier to handle calculations involving money, time, and measurements with accuracy and understanding.

Try These Related Quizzes

1 .

What are the place positions of the numbers in the decimal parts of the numbers given?
2.34

4 is in the tenths place position, 3 is in the hundredths place position, nothing is in the thousandths place position

nothing is in the tenths place position, 3 is in the hundredths place position, 4 is in the thousandths place position

3 is in the tenths place position, 4 is in the hundredths place position, nothing is in the thousandths place position

3 is in the tenths place position, nothing is in the hundredths place position, 4 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 5 in 3.5
The second number to the right of the dp is in the hundredths place position, e.g. 4 in 3.54
The third number to the right of the dp is in the thousandths place position, e.g. 7 in 3.547

2 .

What are the place positions of the numbers in the decimal parts of the numbers given?
12.056

5 is in the tenths place position, 6 is in the hundredths place position, 0 is in the thousandths place position

0 is in the tenths place position, 5 is in the hundredths place position, 6 is in the thousandths place position

6 is in the tenths place position, 5 is in the hundredths place position, 0 is in the thousandths place position

5 is in the tenths place position, 0 is in the hundredths place position, 6 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 1 in 8.1
The second number to the right of the dp is in the hundredths place position, e.g. 7 in 8.17
The third number to the right of the dp is in the thousandths place position, e.g. 6 in 8.176

3 .

What are the place positions of the numbers in the decimal parts of the numbers given?
0.246

6 is in the tenths place position, 4 is in the hundredths place position, 2 is in the thousandths place position

6 is in the tenths place position, 2 is in the hundredths place position, 4 is in the thousandths place position

2 is in the tenths place position, 4 is in the hundredths place position, 6 is in the thousandths place position

4 is in the tenths place position, 6 is in the hundredths place position, 2 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 2 in 4.2
The second number to the right of the dp is in the hundredths place position, e.g. 9 in 4.29
The third number to the right of the dp is in the thousandths place position, e.g. 8 in 4.298

4 .

What are the place positions of the numbers in the decimal parts of the numbers given?
124.987

7 is in the tenths place position, 8 is in the hundredths place position, 9 is in the thousandths place position

7 is in the tenths place position, 9 is in the hundredths place position, 8 is in the thousandths place position

8 is in the tenths place position, 7 is in the hundredths place position, 9 is in the thousandths place position

9 is in the tenths place position, 8 is in the hundredths place position, 7 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 9 in 5.9
The second number to the right of the dp is in the hundredths place position, e.g. 4 in 5.94
The third number to the right of the dp is in the thousandths place position, e.g. 7 in 5.947

5 .

What are the place positions of the numbers in the decimal parts of the numbers given?
0.001

0 is in the tenths place position, 0 is in the hundredths place position, 1 is in the thousandths place position

1 is in the tenths place position, 0 is in the hundredths place position, 0 is in the thousandths place position

0 is in the tenths place position, 1 is in the hundredths place position, 0 is in the thousandths place position

1 is in the tenths place position, 0 is in the hundredths place position, 1 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 8 in 2.8
The second number to the right of the dp is in the hundredths place position, e.g. 9 in 2.89
The third number to the right of the dp is in the thousandths place position, e.g. 1 in 2.891

6 .

What are the place positions of the numbers in the decimal parts of the numbers given?
56.407

0 is in the tenths place position, 4 is in the hundredths place position, 7 is in the thousandths place position

4 is in the tenths place position, 0 is in the hundredths place position, 7 is in the thousandths place position

7 is in the tenths place position, 4 is in the hundredths place position, 0 is in the thousandths place position

7 is in the tenths place position, 0 is in the hundredths place position, 4 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 6 in 1.6
The second number to the right of the dp is in the hundredths place position, e.g. 2 in 1.62
The third number to the right of the dp is in the thousandths place position, e.g. 9 in 1.629

7 .

What are the place positions of the numbers in the decimal parts of the numbers given?
18.895

5 is in the tenths place position, 9 is in the hundredths place position, 8 is in the thousandths place position

5 is in the tenths place position, 8 is in the hundredths place position, 9 is in the thousandths place position

9 is in the tenths place position, 8 is in the hundredths place position, 5 is in the thousandths place position

8 is in the tenths place position, 9 is in the hundredths place position, 5 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 5 in 7.5
The second number to the right of the dp is in the hundredths place position, e.g. 4 in 7.54
The third number to the right of the dp is in the thousandths place position, e.g. 9 in 7.549

8 .

What are the place positions of the numbers in the decimal parts of the numbers given?
23.010

0 is in the tenths place position, 1 is in the hundredths place position, 0 is in the thousandths place position

0 is in the tenths place position, 0 is in the hundredths place position, 1 is in the thousandths place position

1 is in the tenths place position, 0 is in the hundredths place position, 0 is in the thousandths place position

0 is in the tenths place position, 0 is in the hundredths place position, 0 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 1 in 9.1
The second number to the right of the dp is in the hundredths place position, e.g. 5 in 9.15
The third number to the right of the dp is in the thousandths place position, e.g. 4 in 9.154

9 .

What are the place positions of the numbers in the decimal parts of the numbers given?
1.970

9 is in the tenths place position, 0 is in the hundredths place position, 7 is in the thousandths place position

7 is in the tenths place position, 9 is in the hundredths place position, 0 is in the thousandths place position

0 is in the tenths place position, 7 is in the hundredths place position, 9 is in the thousandths place position

9 is in the tenths place position, 7 is in the hundredths place position, 0 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 8 in 7.8
The second number to the right of the dp is in the hundredths place position, e.g. 6 in 7.86
The third number to the right of the dp is in the thousandths place position, e.g. 3 in 7.863

10 .

What are the place positions of the numbers in the decimal parts of the numbers given?
11.186

6 is in the tenths place position, 8 is in the hundredths place position, 1 is in the thousandths place position

8 is in the tenths place position, 6 is in the hundredths place position, 1 is in the thousandths place position

1 is in the tenths place position, 6 is in the hundredths place position, 8 is in the thousandths place position

1 is in the tenths place position, 8 is in the hundredths place position, 6 is in the thousandths place position

TIP:
The first number to the right of the dp is in the tenths place position, e.g. 2 in 3.2
The second number to the right of the dp is in the hundredths place position, e.g. 1 in 3.21
The third number to the right of the dp is in the thousandths place position, e.g. 8 in 3.218

Author: Frank Evans (Specialist 11 Plus Teacher and Tutor)