CBSE Class 4 Mathematics Tick Tick Assignment Set 02

Question 1. Fill in the blanks:
a) There are 60 divisions on the face of clock.
b) Half an hour = 30 minutes.
c) Quarter of an hour = 15 minutes.
d) 4 days = 96 hours.
e) A cube has 6 faces.
Answer:
a) 60
b) 30
c) 15
d) 96 (since 1 day = 24 hours, \(4 \times 24 = 96\))
e) 6
In simple words: Basic time conversion facts and properties of 3D shapes are used here.

Exam Tip: Memorize standard conversions like 1 hour = 60 minutes and 1 day = 24 hours to solve time problems quickly.

Question 2. Write the following dates in short form:
a) 1st January 2013
b) 23rd November 2009
Answer:
a) 01/01/2013 or 1/1/2013
b) 23/11/2009
In simple words: Dates are written numerically in day/month/year format.

Exam Tip: Months can be represented by their order number (January is 1, November is 11).

Question 3. What time will it be:
a) 4 hours after 6:30 pm?
b) 25 minutes after 12:30 pm?
c) 3 hours after 3:05 am?
Answer:
a) 10:30 pm
b) 12:55 pm
c) 6:05 am
In simple words: Add the given hours or minutes to the starting time.

Exam Tip: Be careful when adding hours across noon or midnight, but for these simple additions, just add directly to the hour or minute value.

Question 4. On 15th May 2006, Mohan went to a shop to buy butter. It was written on the packet "Best before 180 days from the date of packing". The date of packing was 15/1/2006. Find out:
a) In which month was the butter packed?
b) Which month will it be 180 days after 15/01/2006?
c) Can Mohan eat it on 15th May 2006? (yes or no)
Answer:
a) January
b) July (180 days equals 6 months, and 6 months after January is July)
c) Yes
In simple words: Count the months from the packing date to check if 180 days have passed.

Exam Tip: Remember that 180 days is approximately equal to 6 months (taking 30 days per month).

Question 5. Sita studies for 2 hours and 40 minutes every day. On Sunday she put in 1 hour and 15 minutes of extra work. Find out the total time she studied on Sunday.
Answer:
Regular study time = 2 hours and 40 minutes
Extra time = 1 hour and 15 minutes
Adding hours: \(2 \text{ hours} + 1 \text{ hour} = 3 \text{ hours}\)
Adding minutes: \(40 \text{ minutes} + 15 \text{ minutes} = 55 \text{ minutes}\)
Total time = 3 hours and 55 minutes
In simple words: Add hours to hours and minutes to minutes separately.

Exam Tip: If the total minutes exceed 60, convert every 60 minutes into 1 extra hour.

Question 6. Draw the top, front and side view of:
a) A spoon
b) A railway track
c) A glass
d) A funnel
Answer:
a) Spoon: Top view looks like an elongated oval with a handle; Front view shows the curved scoop and flat handle; Side view shows the thin profile with depth.
b) Railway track: Top view shows two parallel lines with small transverse sleepers; Front view shows the cross-section of rails; Side view shows a continuous horizontal line.
c) Glass: Top view shows two concentric circles (rim and base); Front view and side view both look like a trapezoid or cylinder.
d) Funnel: Top view shows two concentric circles (wide opening and spout); Front view and side view show a triangle shape attached to a small vertical rectangle (cone and tube).
In simple words: Visualizing how an object looks from different directions (top, front, side).

Exam Tip: Practice sketching basic 3D objects from different angles accurately with labels.

Question 7. Draw a cube showing its three faces.
Answer:
To draw a cube showing three faces, draw a square, draw a second identical square offset to the top-right, and connect the corresponding corners with straight lines.
In simple words: A 3D drawing of a box where the front, top, and side faces are visible.

Exam Tip: Use dotted lines for hidden edges if drawing a transparent wireframe, or solid lines for a solid block showing 3 adjacent faces.

Question 8. Fill in the blanks:
a) A dice is like a cube.
b) It has 12 edges and 8 corners.
c) The number on the opposite face of dice add up to 7.
Answer:
a) cube
b) 12, 8
c) 7
In simple words: A standard standard dice has the shape of a cube with specific properties for its faces and corners.

Question 9. Change into 24-hours clock time:
a) 7:30 a.m
b) 12 noon
c) 6:00 p.m
d) 8:30 a.m
Answer:
a) 0730 hours
b) 1200 hours
c) 1800 hours (since \(6:00 + 12:00 = 18:00\))
d) 0830 hours
In simple words: For p.m. times (except 12 noon), add 12 hours to convert to 24-hour clock time.

Exam Tip: 24-hour clock time is always written with 4 digits without a colon (e.g., 0730 hours).

Question 10. Look at the dice and answer the following:
a) is on the opposite side of 6.
b) will be at the bottom.
c) The numbers on the opposite faces of the dice add up to 7.
Answer:
a) 1 (since opposite faces on a standard dice add up to 7, and \(7 - 6 = 1\))
b) 5 (if 2 is at the top, the bottom face opposite to 2 is \(7 - 2 = 5\))
c) 7
In simple words: Opposite sides of a standard dice always add up to 7.

Exam Tip: Subtract the given number from 7 to find the number on the opposite face of a standard dice.