CBSE Class 4 Maths Building With Bricks Worksheet Set 01

Question 1. Which is stronger?
दोनों में से मजबूत कौन |
(a)
(b)
Answer: Wall (a) is much stronger. In this arrangement, the vertical joints between bricks do not line up directly above each other. Instead, each brick overlaps two bricks below it, locking the wall tightly in place.
In simple words: Wall (a) will not fall easily because the bricks overlap each other and lock together.

Exam Tip: Remember that interlocking or overlapping brick patterns make walls strong, while straight vertical joint lines make a wall weak.

Question 2. Make a beautiful jaali in the wall drawn below.
नीचे दी गई दीवार मे एक सुन्दर जाली बनाओ|
Answer: A jaali is drawn by shading alternate gaps between bricks to form open spaces or decorative screen patterns, as shown below:
In simple words: A jaali is a net-like design made by leaving tiny openings between bricks for breeze and light.

Exam Tip: Keep the shaded holes symmetrical to create an attractive jaali pattern.

Question 3. Make some jharokha patterns on the wall given below.
नीचे दी गई दीवार मे झरोखों के कुछ पैटर्न बनाओ |
Answer: A jharokha is a traditional window design. You can draw it on the wall by darkening bricks to outline an arched window frame, like this:
In simple words: A jharokha is a pretty window opening made in a brick wall.

Exam Tip: A jharokha typically has an arched top and straight sides, resembling a palace balcony window.

Question 4. Take one brick and measure it.
एक ईंट लीजिए व उसे मापिए |
(i) What is the length of the brick? ________
ईंट की लंबाई ________
(ii) What is the width of the brick? ________
ईंट की चौड़ाई ________
(iii) What is the height of the brick? ________
ईंट की ऊँचाई ________
(iv) How many brick will a boy need to put in a line to make a 1 meter wall?
एक मीटर दीवार लगाने के लिए एक लडके को कितनी ईंटों की आवश्यकता पड़ेगी |
Answer: Measurements can vary based on the brick used. For a standard Indian brick:
(i) Length = about 20 cm (or 25 cm depending on the brick)
(ii) Width = about 10 cm
(iii) Height = about 7 cm
(iv) 1 meter = 100 cm.
If each brick is about 20 cm long:
Number of bricks needed = \( \frac{100\text{ cm}}{20\text{ cm}} = 5 \text{ bricks} \).
(If using a 25 cm brick: \( \frac{100\text{ cm}}{25\text{ cm}} = 4 \text{ bricks} \)).
In simple words: Measure your real brick with a ruler. Divide 100 cm by the brick's length to find how many fit in 1 meter.

Exam Tip: Always remember to convert 1 meter into 100 centimeters before calculating the number of bricks.

Question 5. Draw a brick
एक ईंट बनाइए |
Answer: A brick has the 3D shape of a cuboid, as shown below:
In simple words: Draw a front box, then slant lines back to show all three sides of the solid brick.

Exam Tip: Show three visible faces (top, front, and side) when drawing a 3D brick to get full marks.

Question 6.
a) How many faces does a brick have?
एक ईंट के कितने पृष्ठ होते है?
b) What is the shape of the faces of the brick?
ईंट के पृष्ठ की आकृति बनाएँ |
c) Draw the largest face of the brick.
एक सर्वाधिक ईंट का चित्र बनाईए |
Answer:
(a) A brick has 6 flat faces.
(b) Each face is rectangular in shape (rectangle / आयत).
(c) The largest face corresponds to its top or bottom surface (Length × Width):
In simple words: A brick has six flat sides, and every side looks like a rectangle.

Exam Tip: A cuboid has 6 rectangular faces, 12 edges, and 8 corners (vertices).

Question 7. Make patterns with brick in circular shape.
गोलाकार में ईंटों से पैटर्न बनाएँ |
Answer: Here is a circular pattern created by setting bricks around a center point:
In simple words: Place bricks turning in a round ring to make a circular floor design.

Exam Tip: Circular floor patterns are formed by radiating bricks evenly outward from the central point.

Question 8. Make pattern using the bricks diagonally.
ईंटों को विकर्ण (आकार) में व्यवस्थित करते हुए पैटर्न बनाओ |
Answer: Here is a pattern showing bricks arranged in diagonal or slanting rows:
In simple words: Place the bricks tilting sideways along slanted lines instead of straight rows.

Exam Tip: Diagonal patterns use slanting 45-degree brick lines, often called herringbone or zigzag styles.

Question 9.
Cost of the bricks (Per thousand) / ईंट की कीमत
Rs. 1800 — Ahmedabad
Rs. 2100 — Kolkata
(a) If a person wants to buy 500 bricks from Kolkata, what will be the cost of those bricks?
यदि एक व्यक्ति कोलकाता से ५०० ईंटे मँगवाता है तो उसे कितनी कीमत चुकानी पडेगी |
(b) If a person wants to buy 2000 bricks from Ahmedabad, What will be the cost of those brick?
यदि एक व्यक्ति अहमदाबाद से २०००टें मँगवाता है तो उसे कितनी कीमत चुकानी पडेंगी ?
Answer:
 

(a) Kolkata rates: 1000 bricks cost Rs. 2100.
Since 500 bricks is half of 1000 bricks:
Cost of 500 bricks = \( \frac{\text{Rs. } 2100}{2} = \text{Rs. } 1050 \).

(b) Ahmedabad rates: 1000 bricks cost Rs. 1800.
To buy 2000 bricks (which is twice as many):
Cost of 2000 bricks = \( 2 \times \text{Rs. } 1800 = \text{Rs. } 3600 \).
In simple words: 500 is half of 1000, so halve the price for Kolkata. 2000 is double 1000, so double the price for Ahmedabad.
Exam Tip: Solve unitary method problems by finding the cost of 1 brick first, or by using simple fractions like half and double.

Competency :- Formation of Numbers

1. Fill in the blanks.

a. A brick has ______edges.

b. A square has ________ sides.

c. A rectangle has _______faces.

d. A soap has _______faces.

e. A cuboidal box has _________ corners.

f. The number of faces in a brick is equal to ________.

g. A dice has __________ faces.

h. A brick is a _______dimensional object.

i. A triangle has ______sides.

j. A triangle has ______ corners.

2. Count and write the number of faces you can see in each of the following figures and colour each of the faces using different colours.

Competency : Ability to Compute

1. Calculate mentally and write the answer.

1. If a brick cost Re 1, then 500 bricks will cost _______________.

2. If the cost of a brick is Rs 2, then cost of 1000 bricks is Rs ___________

3. If the cost of 1 brick is Rs 5, then cost of 2000 bricks is Rs______________

4. If the cost of I brick is Rs 3, then cost of 4000 bricks is Rs______________

5. If the cost of 1000 bricks is Rs 3000 then the cost of 1 brick is Rs_____________

6. If the cost of 2000 bricks is Rs 8000, then the cost of 1 brick is Rs_____________

7. If the cost of 200 bricks is Rs 600, then the cost of 1 brick is Rs_______________

2. COMPLETE THE TABLE

Competency : Problem Solving Ability

1. Make an arch using bricks.

2. Draw two wall patterns using bricks.

3. Make any two floor patterns using colour paper and stick it below.