Decimal Numbers (Easy)
33 is a whole number. 3.3 is a decimal number.

Decimal Numbers (Easy)

Decimal numbers have a dot or point. This is the first 11-plus Maths quiz on decimal numbers: these are numbers that are not whole numbers, e.g. '5' is a whole number BUT '5.5' is not a whole number: 5.5 = 5 + 0.5. The '.' (dot) is called the decimal point and the numbers to the right of the decimal point (dp) form the decimal part of the number. Here's a handy 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

To get a feel for decimal numbers, play these ten questions and see how you do before moving onto the next one.

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  1. What are the place positions of the numbers in the decimal parts of the numbers given?
    18.895
    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
  2. What are the place positions of the numbers in the decimal parts of the numbers given?
    0.246
    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
  3. What are the place positions of the numbers in the decimal parts of the numbers given?
    56.407
    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
  4. What are the place positions of the numbers in the decimal parts of the numbers given?
    23.010
    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
  5. What are the place positions of the numbers in the decimal parts of the numbers given?
    124.987
    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
  6. What are the place positions of the numbers in the decimal parts of the numbers given?
    12.056
    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
  7. What are the place positions of the numbers in the decimal parts of the numbers given?
    1.970
    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
  8. What are the place positions of the numbers in the decimal parts of the numbers given?
    11.186
    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
  9. What are the place positions of the numbers in the decimal parts of the numbers given?
    0.001
    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
  10. What are the place positions of the numbers in the decimal parts of the numbers given?
    2.34
    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

Author: Frank Evans

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