math.only.math

The number that comes just before a number is called the predecessor. So, the predecessor of a given number is 1 less than the given number. Successor of a […]

What are the rules for the comparison of three-digit numbers? (i) The numbers having less than three digits are always smaller than the numbers having three […]

Three digit numbers are from 100 to 999. We know that there are nine one-digit numbers, i.e., 1, 2, 3, 4, 5, 6, 7, 8 and 9. There are 90 two digit numbers […]

4th grade math worksheets is carefully planned and thoughtfully presented on mathematics for the students. Teachers and parents can also follow the worksheets […]

In pictographs we learnt to recognize different things in our surroundings and to express the given information through pictorial symbols of different objects.

What is an angle? When two sides or line-segments are inclined and meet at a point, then this inclination is called an angle.

We will learn how to construction of an angle using a protractor. Let us draw an angle whose measure is 60°. Use a ruler to draw YZ. Now, place the protractor […]

The amount of surface that a plane figure covers is called its area. It’s unit is square centimeters or square meters etc. A rectangle, a square, a triangle […]

Here we will learn about how to find area and perimeter of a plane figures. The perimeter is used to measure the boundaries and the area is used to measure the […]

We will discuss here how to find the perimeter of a square. Perimeter of a square is the total length (distance) of the boundary of a square. We know that all […]

We will discuss here how to find the perimeter of a rectangle. We know perimeter of a rectangle is the total length (distance) of the boundary of a rectangle. […]

We will discuss here how to find the perimeter of a triangle. We know perimeter of a triangle is the total length (distance) of the boundary of a triangle. […]

Perimeter of a figure is explained here. Perimeter is the total length of the boundary of a closed figure. The perimeter of a simple closed figure is the sum […]

A figure bounded by line segments is a regular figure. Figures bounded by curved lines are called irregular figures. The space enclosed by the line segments is […]

We will discuss here about constructing a line segment. We know how to draw a line segment of a certain length. Suppose we want to draw a line segment of 4.5 […]

We will discuss here about measuring the line segment i.e. how to draw and measure a line segment using scale or ruler. We can measure a line segment by two […]

We will learn measure a length using a ruler. The ruler given below has 15 cm marked on it. The length of the ruler is 15 cm. To measure a length of a pencil, […]

Geometry is one of the oldest and main branches of mathematics. Measurement of the earth is the exact meaning of the word ‘Geometry’. The geometry began […]

We will learn how to addition and subtraction of units of time. 1. Add 25 minutes 45 seconds and 15 minutes 25 seconds. Solution: First add the seconds 45 + […]

Profit and loss are discussed here. Ron is a shopkeeper. He buys his goods either from the factory directly or from the whole seller. He then tries to sell […]

Formulas of profit and loss are given below. When the Selling Price (SP) is greater than Cost Price (CP) the man makes a Profit or Gain. Selling Price (SP) […]

We will discuss here about the addition of hours, minutes and seconds. Let us consider some of the examples on adding time.

We know that hour, minute and second are the units, we use to measure the time. Now we will practice the questions given in the worksheet on conversion of time.

We normally use 12-hour clock system. The hour hand of the clock goes round the dial twice a day (24 hours). Some departments like railways, Airlines, etc use […]

Units of time conversion chart are discussed here in hour, minute, second, day, week, month, and year. We know that there are 12 months in a year. The months […]