Far and Near 5 Maths Chapter 5 CBSE Notes 2025-26

Understanding measurement is essential in our daily lives, as we use length and distance frequently. In this chapter, students build on their basics and explore various standard and non-standard units used to measure length. From millimetres to kilometres, it covers how to choose the correct unit for different items and scenarios, and the relationships between these units.

Appropriate Units of Measurement

Different objects require different units for accurate measurement. For example, the height of India Gate (42 metres), depth of a well (50 metres), and the length of an elephant’s trunk (2 metres) are best measured in metres. Smaller items like a handkerchief (40 cm), mobile phone (13 cm), or distance between buttons on a shirt (5 cm) are more suitable for centimetres. This helps in avoiding errors and confusion.

Different Units but Same Measure

Sometimes, a length can be expressed using different units, but the actual size remains the same. For example, 100 cm and 1 m represent the same length. Using double number lines helps in visually understanding such equivalences and helps while converting between centimetres and metres.

Comparing Lengths

To compare lengths, it is necessary to convert all measurements to the same unit. For instance, to compare 456 cm and 5 m, convert 5 m to 500 cm and check which is greater. Similarly, addition and subtraction can be used for such comparisons among rods or other items. The correct use of "<", ">", or "=" becomes easier with simple conversion.

World’s Tallest Statues

The chapter introduces famous tall statues of the world to make the topic engaging. The tallest statue is the Statue of Unity in India at 182 m, followed by Spring Temple Buddha (128 m) in China. Students are encouraged to find the difference in height between the Statue of Unity and others such as the Statue of Liberty (93 m). Tables are given for easy reference and comparison.

Practicing Comparisons and Calculations

Lists of various lengths like 204 cm, 5 m 40 cm, 404 cm, and others are provided for practice. Converting everything to one unit, usually centimetres, makes it easier to arrange in order or compare. Practice using these values strengthens the student's ability to work fluently with metric units.

Measuring Long Distances

For longer distances, units like metres and kilometres are used. Instruments such as Long Tape, RodoMeter, Rangefinder, and Laser Distance Meter are common tools. One kilometre equals 1,000 metres. Activities encourage students to estimate or walk and measure distances around them, enhancing real-life understanding of distances like 100 m, 200 m or 1 km.

Length of Rope Needed to Make 1 km

A table demonstrates the number of ropes needed to make a length of 1 km using ropes of different sizes. For example, ten ropes of 100 m each, four ropes of 250 m each, or one rope of 1,000 m will all result in 1 km. This example helps in practicing repeated addition and division.

Kilometre Race and Real-Life Application

Planning water stations at every 500 m or directing children at 300 m intervals in a 1 km race requires division and multiplication skills. Questions like how many stations or children will be required invite students to apply multiplication, addition, or division in practical events. Alternating flags at every 50 m is another example of applications of measurment in activity planning.

Understanding Long Train Journeys

The chapter illustrates the longest train journey, the Vivek Express, covering 4,187 km from Dibrugarh to Kanniyakumari. A table is provided listing important stations and distances, which allows students to calculate the distance between two specific stops by subtracting one distance from another, for example, between Vijayawada and Visakhapatnam, or Guwahati and Coimbatore Junction.

Measuring Small Things and Millimetre as a Unit

Small items require smaller units. One centimetre comprises ten millimetres (mm), which helps in increasing accuracy. Activities include measuring a sprout’s daily growth in millimetres to show how minor changes can be tracked. Understanding that 1 cm = 10 mm gives students clarity when switching between centimetres and millimetres.

Relationship Between Different Units

Metric conversion is vital. Students should remember: 10 mm = 1 cm; 100 cm = 1 m; 1,000 m = 1 km. This helps in all unit conversions throughout the chapter—whether drawing lines of a specific length or solving real-life problems. Drawing a line of 36 mm, for example, requires changing mm to cm and using the scale accordingly.

Conversions and Double Number Lines

Students practise converting compound units: for example, 4 cm 5 mm into 45 mm, or 6 m 34 cm into 634 cm. Double number lines strengthen mental math and quick unit shifting, e.g. 1 m = 100 cm, 10 m = 1,000 cm, and 1 km = 1,000 m. Practice helps in mastery.

Adding, Subtracting, and Comparing Lengths

For daily life problems, such as: If Saji walks 3 km 450 m in the morning and 4 km 650 m in the evening, the total is found by first adding km parts, then metres, and making necessary conversions. Similarly, to find remaining cable after using part of it, subtract the lengths after converting both to cm or m.

Multiplying and Dividing Lengths

Daily use-cases are shown—like how much cloth is required for 20 shirts if one requires 1 m 80 cm each, or calculating cost of cloth sold by metre. The concept of dividing lengths is also covered, e.g., dividing road length made over six days to find the daily progress.

Other Units: Feet and Inches

Apart from metric units, length is also measured in feet and inches, especially for heights of people or buildings. 1 inch = 2 cm 5 mm, and 1 foot = 12 inches or 30 cm. Looking at scales or rulers helps students relate cm, mm, and inches visually.

Estimation and Measurement Activities

Students are encouraged to estimate the height of buildings, trees or the depth of a pool, and discuss methods or references used. Measuring one’s own height in feet and inches with the help of a wall and a scale makes the concepts more practical and relatable.

Class 5 Maths Chapter 5 Notes – Far and Near: Key Points for Quick Revision

These Class 5 Maths Chapter 5 notes offer a clear overview of all important length units and conversions you need to know. Each topic highlights concepts like measuring with rulers, applying metric units, and reading tables and data easily. Use these revision notes to boost your understanding and prepare for exams confidently.

Whether it’s long distances, statue heights, train journeys, or simple classroom tasks, these notes present facts, examples, and exercises in a student-friendly way. Class 5 students will find all essential pointers, conversion tricks, and example problems together for quick last-minute revision.