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Unit Test : Measuring Length | Mathematics for Class 4 (Maths Mela: New NCERT) PDF Download

Total Marks: 20
Attempt all questions.

  • Question numbers 1 to 4 carry 1 mark each.
  • Question numbers 5 to 9 carry 2 marks each.
  • Question numbers 10 to 11 carry 3 marks each.

Q1. Which unit should you use to measure the length of a crayon? (1 Mark)
a) Meter
b) Centimeter
c) Kilometer
d) Liter

Q2. How many centimeters make 1 meter? (1 Mark)
a) 10
b) 50
c) 100
d) 200

Q3. Which tool is best to measure the length of a curved rope? (1 Mark)
a) Ruler
b) Measuring tape
c) Meter stick
d) Weighing scale

Q4. Q4. What do we call the total length around a shape? (1 Mark)
a) Area
b) Height
c) Perimeter
d) Weight

Q5. Show how to make 1 meter using half meters and quarter meters. (2 Marks)

Q6. Ramu says his height is 100 cm, and Shamu says his height is 1 meter. Are they the same height? Show how. (2 Marks)

Q7. A book is 15 cm long. If you place 2 such books end-to-end, what is the total length in centimeters? (2 Marks)

Q8. A ribbon is 40 cm long. If you cut it into 2 equal parts, what is the length of each part in centimeters? (2 Marks)

Q9. A desk is 80 cm long, and a chair is 50 cm long. Which is longer, and by how much in centimeters? (2 Marks)

Q10. A table is 1 meter long, and a bench is 70 cm long. Which is longer, and by how much in centimeters? Show steps. (3 Marks)

Q11. Q11. Bhola’s garden is a rectangle with two sides of 1 meter each and two sides of 50 cm each. Find the perimeter in centimeters. Show steps. (3 Marks)

The document Unit Test : Measuring Length | Mathematics for Class 4 (Maths Mela: New NCERT) is a part of the Class 4 Course Mathematics for Class 4 (Maths Mela: New NCERT).
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FAQs on Unit Test : Measuring Length - Mathematics for Class 4 (Maths Mela: New NCERT)

1. What is the importance of measuring length in everyday life?
Ans.Measuring length is crucial in everyday life as it helps us understand and compare distances, sizes, and dimensions. From cooking and crafting to construction and transportation, accurate measurements ensure that tasks are completed correctly and efficiently. For instance, knowing how long a piece of furniture is helps in arranging a room, while measuring ingredients precisely is vital in cooking.
2. What units are commonly used to measure length?
Ans.Common units for measuring length include centimeters (cm), meters (m), kilometers (km), inches (in), feet (ft), and yards (yd). In the metric system, the centimeter and meter are widely used for everyday measurements, while kilometers are used for longer distances. In the imperial system, inches, feet, and yards are commonly used, especially in the United States.
3. How can length be measured accurately?
Ans.Length can be measured accurately using various tools, such as rulers, measuring tapes, and calipers. A ruler is ideal for short distances, while a measuring tape is more suitable for longer lengths. For even more precision, especially in scientific contexts, calipers can measure internal and external dimensions very accurately. It's important to ensure that the measuring tool is properly aligned and that measurements are taken from the correct starting point.
4. What is the difference between metric and imperial systems of measurement?
Ans.The metric system is based on units of ten, making it easier to convert between different units (e.g., 1 meter = 100 centimeters). It is widely used around the world for scientific and everyday measurements. The imperial system, on the other hand, includes units such as inches, feet, and miles, and is primarily used in the United States. The conversion between units in the imperial system is not as straightforward, which can lead to confusion.
5. Why is it important for students to learn about measuring length?
Ans.Learning about measuring length is important for students as it builds foundational math skills essential for problem-solving and critical thinking. Understanding measurement helps students apply math in real-world situations, enhances their spatial awareness, and prepares them for more advanced concepts in science and engineering. Additionally, it fosters the ability to communicate measurements effectively in various contexts.
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