Topics
Basic Concepts in Geometry
Angles
Integers
Operations on Fractions
Decimal Fractions
Bar Graphs
Symmetry
Divisibility
HCF-LCM
Equations
Ratio and Proportion
Percentage
Profit –Loss
- Basic Concepts of Profit and Loss
- Profit or Loss as a Percentage
- Total Cost Price in Mathematics
Banks and Simple Interest
Triangles and Their Properties
Quadrilaterals
Geometrical Constructions
Three Dimensional Shapes
- Prism
- Cubes
- Basic Concept of Cylinder
- Pyramid
- Basic Concept of Cone
- Basic Concept of Spheres
Concept of Tenths, Hundredths, and Thousandths in Decimal
Tenths:
`1/10` means 1 part out of 10 parts of a whole. It can be written as 0.1 in decimal notation. The dot represents the decimal point, and it comes between the unit's place and the tenth place.
Every fraction with a denominator of 10 can be written in decimal notation and vice versa.
Hundredth:
`1/100` means 1 part out of 100 parts of a whole. Hence, the second number after the decimal represents the hundredth part of the whole.
It can be written as 0.01 in decimal notation.
Thousandths:
In the place value table, as we go from left to right, the multiplying factor becomes `1/10` of the previous factor.
The place value table can be further extended from hundredths to `1/(10)` thousandths, i.e., thousandths `(1/(1000))`, which is written as 0.001 in decimal notation.
Study how the decimal fractions in the table below are written and read.
| Fractions | Tens | Units | Tenths | Hundredths | Decimal fractions in figures |
Decimal fractions in words |
| 7 `"5"/"10"` | 7 | 5 | 7.5 | Seven point five | ||
| 7 `"5"/"100"` | 7 | 0 | 5 | 7.05 | Seven point zero five | |
| `"82"/"100"` | 0 | 8 | 2 | 0.82 | Zero point eight, two | |
| 25 `"6"/"100"` | 2 | 5 | 0 | 6 | 25.06 | Twenty-five point zero six |
