Chapter 5 : Measurement

Measurement – Length in Centimeters (cm) and Meters (m)

Age suitability: 4–8 years • Grades: 2–3 • Board-agnostic • For hearing‑impaired learners. Clear text + pictures.

Tip for learners: Read the short sentence, then look at the picture. Match the number with the marks on the ruler or meter strip.

What is a centimeter?

A centimeter (cm) is a small unit to measure short lengths. A pencil, eraser, or button can be measured in cm. 10 mm = 1 cm. 100 cm = 1 m.

0 1 2 3 4 5 7 8 9 10 11 12 13 14
Ruler showing centimeters.

What is a meter?

A meter (m) is used for longer things: your height, a door, or a rope. 1 m = 100 cm.

0 cm 10 20 30 40 50 60 70 80 90 100 cm = 1 m
1 meter equals 100 centimeters.

How to measure

  1. Place the object’s edge at 0 on the ruler.
  2. Look where the other end stops. Read the number at that mark.
  3. If it stops between two marks, choose the nearer whole cm (for this level).

Accessibility cue: ✋ shows action, 👀 shows where to look.

Centimeters (cm) – 12 Solved Questions

Q1. A crayon starts at 0 and ends at 6 on the ruler. What is its length?

6 cm
👀 Look: the crayon ends at 6.
Answer: 6 cm. Why: It starts at 0 and ends at 6. Length = 6 − 0 = 6 cm.

Q2. An eraser starts at 0 and ends at 4. What is its length?

Answer: 4 cm. Why: 4 − 0 = 4 cm.

Q3. A ribbon starts at 2 and ends at 9. How long is it?

Answer: 7 cm. Why: 9 − 2 = 7 cm.

Q4. Which is longer: 8 cm or 5 cm?

Answer: 8 cm is longer. Why: 8 > 5.

Q5. Join two sticks: 3 cm and 6 cm. What is the total length?

Answer: 9 cm. Why: Add lengths: 3 + 6 = 9 cm.

Q6. A toy car is 10 cm. A block is 7 cm. How much longer is the car?

Answer: 3 cm longer. Why: 10 − 7 = 3 cm.

Q7. 15 cm − 9 cm = ?

Answer: 6 cm. Why: Take away 9 from 15.

Q8. A bookmark is 12 cm. Cut off 5 cm. How long now?

Answer: 7 cm. Why: 12 − 5 = 7 cm.

Q9. Add 4 cm + 4 cm + 2 cm

Answer: 10 cm. Why: 4 + 4 + 2 = 10.

Q10. A string is 11 cm. Another is 11 cm. Same length?

Answer: Yes, both are 11 cm. Why: Equal numbers mean equal lengths.

Q11. A spoon is 14 cm. A fork is 9 cm. How much longer is the spoon?

Answer: 5 cm. Why: 14 − 9 = 5 cm.

Q12. A clip starts at 1 and ends at 5. How long?

Answer: 4 cm. Why: 5 − 1 = 4 cm.

Centimeters (cm) – Practice: 12 Questions

Try yourself. Check answers at the end of this box.

  1. 0 to 7 on the ruler. Length = ?
  2. Starts at 3, ends at 8. Length = ?
  3. Which is longer: 6 cm or 9 cm?
  4. Add: 2 cm + 5 cm = ?
  5. 12 cm − 4 cm = ?
  6. 5 cm + 5 cm + 1 cm = ?
  7. Is 10 cm = 8 cm? (Yes/No)
  8. Starts at 1, ends at 1. Length = ?
  9. 14 cm − 6 cm = ?
  10. Which is shorter: 3 cm or 7 cm?
  11. Add: 9 cm + 0 cm = ?
  12. Starts at 4, ends at 10. Length = ?
Show Answers (cm practice)
  1. 7 cm
  2. 5 cm
  3. 9 cm
  4. 7 cm
  5. 8 cm
  6. 11 cm
  7. No
  8. 0 cm
  9. 8 cm
  10. 3 cm
  11. 9 cm
  12. 6 cm

Meters (m) – 12 Solved Questions

Q1. A rope is 2 m long. How many centimeters is that?

Answer: 200 cm. Why: 1 m = 100 cm → 2 m = 200 cm.

Q2. A child is 1 m tall. Another child is 80 cm tall. Who is taller?

Answer: 1 m (100 cm) is taller than 80 cm. Why: 100 cm > 80 cm.

Q3. A ribbon is 150 cm. How many meters?

Answer: 1 m 50 cm. Why: 100 cm = 1 m, remainder 50 cm.

Q4. 3 m = ? cm

Answer: 300 cm.

Q5. 250 cm = ? m and cm

Answer: 2 m 50 cm. Why: 200 cm (2 m) + 50 cm.

Q6. A hallway is 5 m. A table is 2 m. How much longer is the hallway?

Answer: 3 m. Why: 5 − 2 = 3 m.

Q7. Add 1 m + 3 m

Answer: 4 m.

Q8. A line is 120 cm. Is it more or less than 1 m?

Answer: More. Why: 1 m = 100 cm; 120 cm > 100 cm.

Q9. 90 cm + 20 cm = ? m and cm

Answer: 1 m 10 cm. Why: 90 + 20 = 110 cm = 100 cm + 10 cm.

Q10. Which is longer: 2 m or 180 cm?

Answer: 2 m (200 cm) is longer than 180 cm.

Q11. 400 cm = ? m

Answer: 4 m.

Q12. A jump is 3 m. Another is 2 m 50 cm. Who jumped farther?

Answer: 3 m (300 cm) is farther than 2 m 50 cm (250 cm).

Meters (m) – Practice: 12 Questions

Try yourself. Check answers at the end of this box.

  1. 1 m = ? cm
  2. 2 m 30 cm = ? cm
  3. Which is longer: 150 cm or 1 m?
  4. 3 m − 1 m = ?
  5. 80 cm + 40 cm = ? m and cm
  6. 5 m = ? cm
  7. Which is shorter: 2 m or 180 cm?
  8. 210 cm = ? m and cm
  9. 100 cm + 100 cm = ? m
  10. 4 m 50 cm = ? cm
  11. Is 1 m 20 cm more than 1 m? (Yes/No)
  12. 300 cm − 150 cm = ? m and cm
Show Answers (m practice)
  1. 100 cm
  2. 230 cm
  3. 150 cm
  4. 2 m
  5. 1 m 20 cm
  6. 500 cm
  7. 180 cm is shorter (2 m = 200 cm)
  8. 2 m 10 cm
  9. 2 m
  10. 450 cm
  11. Yes
  12. 1 m 50 cm

Quick Conversions

  • 1 m = 100 cm
  • 2 m = 200 cm
  • 50 cm = 0 m 50 cm
  • 150 cm = 1 m 50 cm

Created for Udgam Welfare Foundation • Free learning resources for hearing‑impaired students • Topic: Measurement – Length (cm, m)

Measurement: Understanding Weight (g and kg)

This study material is designed for children aged 7–8 and hearing-impaired students. It explains the basic concept of weight using grams (g) and kilograms (kg) with simple examples and illustrations.

Introduction to Weight

Weight tells us how heavy or light an object is. We use two main units of measurement:

  • Grams (g): Used for light things like an apple, an eraser, or a small chocolate.
  • Kilograms (kg): Used for heavier things like a bag of rice, a person’s weight, or a big watermelon.
    1 kilogram = 1000 grams.
500 g 1 kg 2 kg

Example: Light items in grams, heavy items in kilograms.

12 Solved Questions with Explanations

  1. Example 1: A chocolate weighs 50 g. How many grams in 10 chocolates?
    Solution: 50 g × 10 = 500 g.
  2. Example 2: A bag of rice weighs 5 kg. How many grams is that?
    Solution: 1 kg = 1000 g → 5 × 1000 = 5000 g.
  3. Example 3: A mango weighs 250 g. What is the total weight of 4 mangoes?
    Solution: 250 × 4 = 1000 g = 1 kg.
  4. Example 4: If a watermelon weighs 2 kg and an apple weighs 200 g, what is their combined weight?
    Solution: 2 kg = 2000 g → 2000 + 200 = 2200 g = 2.2 kg.
  5. Example 5: A packet of biscuits weighs 100 g. What is the weight of 6 packets?
    Solution: 100 × 6 = 600 g.
  6. Example 6: A boy’s school bag weighs 3 kg. How many grams is it?
    Solution: 3 × 1000 = 3000 g.
  7. Example 7: A person buys 2 kg of sugar and 500 g of tea. What is the total weight?
    Solution: 2 kg = 2000 g → 2000 + 500 = 2500 g = 2.5 kg.
  8. Example 8: A toy car weighs 150 g. How much do 3 toy cars weigh?
    Solution: 150 × 3 = 450 g.
  9. Example 9: A pumpkin weighs 4 kg. How many grams is it?
    Solution: 4 × 1000 = 4000 g.
  10. Example 10: A pack of sugar is 750 g. How much more is needed to make it 1 kg?
    Solution: 1000 − 750 = 250 g more.
  11. Example 11: A mother buys 1 kg of flour and 1 kg of rice. What is the combined weight in grams?
    Solution: 1000 + 1000 = 2000 g.
  12. Example 12: A cat weighs 3.5 kg. What is its weight in grams?
    Solution: 3.5 × 1000 = 3500 g.

12 Practice Questions (Try Yourself)

  1. A biscuit weighs 20 g. What is the weight of 5 biscuits?
  2. A dog weighs 8 kg. How many grams is that?
  3. A fruit basket weighs 1.5 kg. What is its weight in grams?
  4. A packet of chips weighs 200 g. How many grams for 4 packets?
  5. A sack of potatoes weighs 10 kg. How many grams is that?
  6. Two bags of sugar weigh 2 kg each. What is the total weight?
  7. A loaf of bread is 400 g. What is the total weight of 3 loaves?
  8. A watermelon weighs 3 kg. How many grams is it?
  9. A pencil box weighs 300 g. What is the total weight of 5 boxes?
  10. A packet of milk weighs 1 kg. What is the total weight of 7 packets?
  11. An apple weighs 150 g. What is the weight of 8 apples?
  12. A child weighs 25 kg. How many grams is that?
Click here to see solutions
  1. 20 × 5 = 100 g
  2. 8 × 1000 = 8000 g
  3. 1.5 × 1000 = 1500 g
  4. 200 × 4 = 800 g
  5. 10 × 1000 = 10,000 g
  6. 2 × 2 × 1000 = 4000 g
  7. 400 × 3 = 1200 g
  8. 3 × 1000 = 3000 g
  9. 300 × 5 = 1500 g
  10. 1 × 1000 × 7 = 7000 g
  11. 150 × 8 = 1200 g
  12. 25 × 1000 = 25,000 g

Measurement: Capacity (Milliliters and Liters)

What is Capacity?

Capacity is how much a container can hold. We measure liquids like water, milk, and juice in milliliters (ml) and liters (L).

1 Liter (L) = 1000 Milliliters (ml)

1 L 500 ml = 1000 ml 500 ml

We use milliliters (ml) for small amounts, like a spoon of medicine.

We use liters (L) for larger amounts, like a bottle of water.

Examples of Capacity

250 ml

Juice box

1 L

Water bottle

50 ml

Medicine spoon

2 L

Soda bottle

Solved Examples

1. How many 250 ml cups can be filled from a 1 L bottle?

250 ml ? 1 L × 4

Solution: 1 L = 1000 ml. Each cup is 250 ml.

Number of cups = 1000 ml ÷ 250 ml = 4

Answer: 4 cups

2. If you have 500 ml of milk and you drink 200 ml, how much is left?

500 ml 200 ml ? −

Solution: 500 ml – 200 ml = 300 ml

Answer: 300 ml

3. A juice box has 200 ml of juice. How much juice is in 3 boxes?

200 ml × 3 ?

Solution: 200 ml × 3 = 600 ml

Answer: 600 ml

4. A water bottle holds 750 ml. How many milliliters are needed to fill it?

750 ml

Solution: The bottle already shows 750 ml.

Answer: 750 ml

5. You have 1 L of water. You use 300 ml. How much is left?

1 L 300 ml ? −

Solution: 1 L = 1000 ml. 1000 ml – 300 ml = 700 ml

Answer: 700 ml

6. How many 500 ml bottles make 2 L?

500 ml ? 2 L × 4

Solution: 2 L = 2000 ml. 2000 ml ÷ 500 ml = 4

Answer: 4 bottles

7. A bucket has 5 L of water. How many 1 L bottles can you fill?

5 L 1 L ? ÷

Solution: 5 L ÷ 1 L = 5

Answer: 5 bottles

8. You mix 250 ml of orange juice and 250 ml of water. How much liquid do you have?

250 ml 250 ml + ?

Solution: 250 ml + 250 ml = 500 ml

Answer: 500 ml

9. A can has 330 ml of soda. How much soda is in 2 cans?

330 ml × 2 ?

Solution: 330 ml × 2 = 660 ml

Answer: 660 ml

10. You have 1.5 L of milk. How many milliliters is that?

1.5 L

Solution: 1.5 L = 1500 ml

Answer: 1500 ml

11. A jug has 2 L of water. You pour out 750 ml. How much is left?

2 L 750 ml ? −

Solution: 2 L = 2000 ml. 2000 ml – 750 ml = 1250 ml

Answer: 1250 ml

12. How many 100 ml glasses can be filled from a 1 L bottle?

100 ml ? 1 L × 10

Solution: 1 L = 1000 ml. 1000 ml ÷ 100 ml = 10

Answer: 10 glasses

Practice Exercise

  1. How many 500 ml bottles make 1 L?
  2. If you have 750 ml of juice and drink 250 ml, how much is left?
  3. A bottle has 1.5 L of water. How many milliliters is that?
  4. You have 3 L of milk. How many 1 L bottles can you fill?
  5. How much is 250 ml + 250 ml?
  6. How many 200 ml cups can be filled from a 1 L bottle?
  7. A can has 300 ml of soda. How much soda is in 3 cans?
  8. You have 2 L of water. You use 500 ml. How much is left?
  9. How many milliliters are in 2.5 L?
  10. How many 250 ml glasses can be filled from a 1.5 L jug?
  11. If you mix 150 ml of syrup and 350 ml of water, how much liquid do you have?
  12. A bucket has 4 L of water. How many 500 ml bottles can you fill?
  13. How much is 1 L – 300 ml?

Solutions to Practice Exercise

  1. 2 bottles
  2. 500 ml
  3. 1500 ml
  4. 3 bottles
  5. 500 ml
  6. 5 cups
  7. 900 ml
  8. 1500 ml
  9. 6 glasses
  10. 500 ml
  11. 8 bottles
  12. 700 ml

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