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.
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
[x] |
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 |
|
|
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 |
[x] |
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 |
|
|
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 |
[x] |
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 |
|
|
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 |
[x] |
9 is in the tenths place position, 8 is in the hundredths place position, 7 is in the thousandths place position |
|
|
5.
|
What are the place positions of the numbers in the decimal parts of the numbers given?
0.001 |
|
[x] |
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 |
|
|
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 |
[x] |
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 |
|
|
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 |
[x] |
8 is in the tenths place position, 9 is in the hundredths place position, 5 is in the thousandths place position |
|
|
8.
|
What are the place positions of the numbers in the decimal parts of the numbers given?
23.010 |
|
[x] |
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 |
|
|
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 |
[x] |
9 is in the tenths place position, 7 is in the hundredths place position, 0 is in the thousandths place position |
|
|
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 |
[x] |
1 is in the tenths place position, 8 is in the hundredths place position, 6 is in the thousandths place position |
|
|
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