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What are four digit numbers? We may divide 4-digit numbers in 9 groups. (i) 1000 to 1999 (one thousand to one thousand nine hundred ninety nine)

Continue reading "Four Digit Numbers | What are Four Digit Numbers? | Numerals and Words"

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 given number is 1 more than the given number. For example, 9,99,99,999 is predecessor of 10,00,00,000 or we can also

Continue reading "Successor and Predecessor | Successor of a Whole Number | Predecessor "

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 digits as:

Continue reading "Comparison of Three-digit Numbers | Arrange 3-digit Numbers |Questions"

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 i.e., from 10 to 99. One digit numbers are ma

Continue reading "Three Digit Numbers | What is Spike Abacus? | Abacus for Kids|3 Digits"

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

Continue reading "4th Grade Math Worksheets | 4th Grade Worksheets | 4th Grade Homework"

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

Continue reading "Pictographs | Pictorial Representation | Pictorial Symbols | Symbols "

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

Continue reading "What is an Angle? | Right Angle | Acute Angle | Obtuse Angle | 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 over YZ such that the baseline of the protractor coincides with YZ and midpoint of the baseline coincides with point

Continue reading "Construction of an Angle using a Protractor | Drawing an Angle"

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 and a circle are all examples of closed plane figures. In the following figures, the shaded region of each of the

Continue reading "Area | Units to find Area | Conversion Table of Area | Two Dimensional"

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 regions enclosed.

Continue reading "Area and Perimeter |Units of Area| Formula of Area and Perimeter "

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 the sides of a square are equal. Perimeter of a Square Perimeter of the square ABCD = AB+BC+CD+AD=2 cm+2cm+2cm+2cm

Continue reading "Perimeter of a Square | How to Find the Perimeter of Square? |Examples"

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. ABCD is a rectangle. We know that the opposite sides of a rectangle are equal. AB = CD = 5 cm and BC = AD = 3 cm

Continue reading "Perimeter of a Rectangle | How to Find the Perimeter 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 triangle is the sum of lengths of its three sides. The perimeter of a triangle ABC Perimeter

Continue reading "Perimeter of a Triangle | Perimeter of a Triangle Formula | Examples "

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 of the measures of line-segments which have surrounded the figure.

Continue reading "Perimeter of a Figure | Perimeter of a Simple Closed Figure | Examples"

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 called the area of a figure.

Continue reading "Regular and Irregular Figures | Area of a Figure | Curved Lines "

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 cm length.

Continue reading "Constructing a Line Segment |Construction of Line Segment|Constructing"

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 ways. (i) With the help of scale

Continue reading "Measuring the Line Segment | Comparing Line Segments"

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, place at the ‘0’ of the ruler at the one end of the pencil and note the position of the other end.

Continue reading "Using a Ruler | Measure a Length | Length of an Object|Find the Length"

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 when men felt the need to measure their lands

Continue reading "Geometry | 5th Grade Geometry | Geometrical Figures | Solid and Plane"

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 + 25 = 70 seconds Convert 70 seconds into minutes and seconds 70 seconds = 60 seconds + 10 seconds Carry 1 minute to

Continue reading "Adding and Subtracting Time | Operation on Measure of Time | US Time"

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 each of goods or item at a higher

Continue reading "Profit and Loss | Profit and Loss Formulas | Profit and Loss Problems"

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) > Cost Price (CP) → Profit or Gain

Continue reading "Formulas of Profit and Loss | Profit and Loss Important Formulas "

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

Continue reading "Addition of Hours, Minutes and Seconds | Addition of Time | Time Calcu"

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.

Continue reading "Worksheet on Conversion of Time | Convert into Hours and Minutes"

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 24-hour clock system because they do

Continue reading "24 Hour Clock | Air and Railway Travel Timetables | General Time"

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 of January, March, May, July, August, October and December have 31 days. The months of April, June, September and

Continue reading "Units of Time Conversion Chart | Conversion Chart | Us Method | Time"

We will discuss here about the conversion of minutes into hours. We know 60 minutes is equal to 1 hour, which is required to convert the measuring time from minutes to hours.

Continue reading "Conversion of Minutes into Hours | Convert Minutes to Hours | Time"

We will discuss here about the conversion of seconds into minutes. We know 1 second is equal to 1/60 minute, which is required to convert the measuring time from seconds to minutes.

Continue reading "Conversion of Seconds into Minutes | Seconds to Minutes Conversion"

We will discuss here about the conversion of hours into minutes. We know 1 hour is equal to 60 minutes which is required to convert the measuring time from hours to minutes.

Continue reading "Conversion of Hours into Minutes | Hours to Minutes Conversion | Time"

There are different units of time. Second, minute, hour, day, week, month and year are the units of time. These have the following relations between each: 60 seconds = 1 minute

Continue reading "Units of Time | Second | Minute | Hour | Day | Week | Month | Year "

Calendar helps us to see the dates and along with that the week day of that same dates. Calculating the number of days between two given dates. Riana stayed at her grandmother's house from

Continue reading "Calendar | Calculating Days | Days in March | Days in April| Leap Year"

We will discuss here about the conversion of minutes into seconds. We know 1 minute is equal to 60 seconds, which is required to convert the measuring time from minutes to seconds.

Continue reading "Conversion of Minutes into Seconds | Converting Minutes to Seconds "

We will learn how to multiply and divide of units of measurement. We carry out multiplication and division of measurements as we do for decimal numbers: 1. Multiply 12 km 56 m by 7. Solution: 12 km 56 m = 12.056 m Hence, 12.056 × 7 = 84.392 km 2. Multiply 44 dam 28 cm by 12

Continue reading "Multiplication and Division of Units of Measurement | Metric System"

Practice the questions given in the worksheet on word problems on measurement. 1. Rachel has a rope of length 40 m. She gave 12 m 53 cm to Sam, 18 m 35 cm to Ron and 9 m 7 cm to Jack. What length of rope is still left with Rachel?

Continue reading "Worksheet on Word Problems on Measurement | 5th Grade Word Problem"

We can add the units of measurement like decimal numbers. 1. Add 5 m 9 dm and 11 m and 5 dm Solution: 5 m 9 dm = 5.9 m 11 m 5 dm = 11.5 m Hence, 5 m 9 dm + 11 m 5 dm = 17 m 4 dm or 17.4 m 2. Add 15 cm 5 mm and 21 cm 9 mm

Continue reading "Addition and Subtraction of Units of Measurement | Metric Units "

We will discuss here about the metric measures of length, mass and capacity. As we know, the standard units of length, weight and capacity are metre (m), gram (g) and litre (l)

Continue reading "Metric Measures | Metric System of Measurement | The Metric System"

To convert a smaller unit into a bigger unit, we move the decimal point to the left. In other words, we can say that we divide. This is very important for us to learn how to convert smaller

Continue reading "Smaller Units to Bigger Units | Convert Smaller Metric Unit to Larger"

To convert a bigger unit a smaller unit, we move the decimal point of the right. In other words, we can say that we multiply. This is very important for us to learn how to convert bigger

Continue reading "Bigger Units to Smaller Units | Convert Larger Unit into Smaller Unit"

We have already studied about fractions and now we will discuss here about the concept of decimal. Fractions can also be expressed as decimal Fractions.

Continue reading "Concept of Decimal | Decimal Point | Concept of Decimal System"

We will learn uses decimals in every day. In daily life we use decimals while dealing with length, weight, money etc. Use of Decimals whole Dealing with Money: 100 paise = 1 rupee We know that one paise in one hundredth of a rupee.

Continue reading "Uses of Decimals | Decimals In Daily Life | Importance Of Decimals"

We will discuss here about the addition of decimals. Decimals are added in the same way as we add ordinary numbers. We arrange the digits in columns and then add as required. Let us consider some

Continue reading "Addition of Decimals | How to Add Decimals? | Adding Decimals|Addition"

We will discuss here about the subtraction of decimals. Decimals are subtracted in the same way as we subtract ordinary numbers. We arrange the digits in columns

Continue reading "Subtraction of Decimals | Subtracting Decimals | Decimal Subtraction"

Equivalent decimal fractions are unlike fractions which are equal in value. Numbers obtained by inserting zeros after the extreme right digit in the decimal part of a decimal number are known as equivalent decimals.

Continue reading "Equivalent Decimal Fractions | Like Decimal Fraction | Unlike Decimal"

We will discuss how to express fraction as decimal. Let us consider some of the following examples on expressing a fraction as a decimal. 1. Convert \(\frac{4}{5}\) into a decimal.

Continue reading "Fraction as Decimal | Converting Fractions | Fractions to Decimals Con"

We will discuss how to express decimal as fraction. Let us consider some of the following examples on expressing a decimal as a fraction. 1. Convert 2.12 into a fraction. Solution: 2.12

Continue reading "Decimal as Fraction | Convert From a Decimal to a Fraction |Converting"

Practice the questions given in the worksheet on word problems on multiplication of mixed fractions. We know to solve the problems on multiplying mixed fractions first we need to convert them

Continue reading "Worksheet on Word Problems on Multiplication of Mixed Fractions | Frac"

We will discuss here how to solve the word problems on division of mixed fractions or division of mixed numbers. Let us consider some of the examples. 1. The product of two numbers is 18.

Continue reading "Word Problems on Division of Mixed Fractions | Dividing Fractions"

We will discuss here how to solve the word problems on multiplication of mixed fractions or multiplication of mixed numbers. Let us consider some of the examples. 1. Aaron had 324 toys. He gave 1/3

Continue reading "Word Problems on Multiplication of Mixed Fractions | Multiplying Fract"

We will discuss here about dividing fractions by a whole number, by a fractional number or by another mixed fractional number. First let us recall how to find reciprocal of a fraction

Continue reading "Dividing Fractions | How to Divide Fractions? | Divide Two Fractions"

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