Samacheer Kalvi 3rd Standard Maths Guide Term 1 Chapter 4 Measurements

Samacheer Kalvi 3rd Standard Maths Book Solutions Term 1 Chapter 4 Measurements

Activity 1 (Text Book Page No. 45):

Tabulate the length of your class table measured by five of your friends with non-standard units.

Answer:
Activity to be done by the students themselves.

Activity 2 (Text Book Page No. 45):

Measure the length of ribbon by your hand span.

Friend 1 ___________ hand span
Friend 2 ___________ hand span
Friend 3 ___________ hand span
Friend 4 ___________ hand span
Answer:
Activity to be done by the students themselves.

Activity 3 (Text Book Page No. 45):

Students are divided into two groups. One group should measure the length of the class room in non standard units and the other group in standard units.
Answer:
Activity to be done by the students themselves.

Activity 4 (Text Book Page No. 45):

Group of five students measure the length of the black board by given objects.

Activity 5 (Text Book Page No. 47):

Measure the length of ribbon by tape roll.

Raj centimeter
Kavi centimeter
Anu centimeter
Kavi centimeter

Measurements measured using standard units do not change from person to person.
Answer:
Activity to be done by the students themselves.

Practice (Text Book Page No. 47):

Question 1.
Measure the length of following things by centimetre scale and write it in the table below.

Answer:
Activity to be done by the students themselves.

Question 2.
Measure length of the things by using ruler.

Measure the length of the following things in your house using a scale.

Answer:
Activity to be done by the students themselves.

Try this (Text Book Page No. 48):

a. Write metre or centimetre in the blank space.

i. My pencil is 6 _____ long.
Answer:
cm

ii. My hairpin is _____ long.
Answer:
mm

iii. This tree is 3 _____ high.
Answer:
m

iv. Height of coconut tree is 15 _____.
Answer:
m

b. Meena has a ribbon of 50 cm and Reena has a ribbon of 110 cm. Whose ribbon is the longer?
Answer:
Meena’s Ribbon = 50 cm
Reena’s Ribbon = 110 cm
∴ Reena’s Ribbon is longer.

Activity 6 (Text Book Page No. 48):

Measure the length of following things in your class room using metre tape and fill in the boxes.

Answer:
Activity to be done by students.

Try this (Text Book Page No. 48):

a. Centimeter _____ Meter
Answer:
<

b. Meter _____ Kilometer
Answer:
<

c. Kilometer _____ Centimeter
Answer:
>

Practice (Text Book Page No. 49):

Match the objects with the appropriate units of measuring their length.

Answer:

Activity 7 (Text Book Page No. 49):

Estimate the length of the following objects and verify with actual length.

Answer:
Activity to be done by students.

Practice (Text Book Page No. 50):

Question 1.
Circle the odd one.
1. mm
2. cm
3. m
4. cubit
Answer:
4. cubit

Question 2.
Fill in the blanks.

a. 1 meter = _____ cms
Answer:
100

b. 2 meter = _____ cms
Answer:
200

c. 3 meter = _____ cms
Answer:
300

d. 4 meter = _____ cms
Answer:
400

Question 3.
Match the following.

10 millimeters	1 kilommeter
100 centimeters	1 centimeter
1000 meters	1 meter

Answer:

Question 4.
Write all the non-standard units.
Answer:

1. Finger span
2. Hand span
3. Cubit
4. Pace
5. Foot span

Question 5.
Write all the standard units you know.
Answer:

1. Millimeter
2. Centimeter
3. Meter
4. Kilometer

Question 6.
Write in short form,

a. millimeter : _____
Answer:
mm

b. meter : _____
Answer:
m

Question 7.
Write the given units in order.
Ascending order: _____, _____, _____, _____
Descending order: _____, _____, _____, _____

Answer:
Ascending order: mm, cm, m, km
Descending order: km, m, cm, mm.

Samacheer Kalvi 3rd Standard Maths Guide