Printable Worksheet: Who is Heavier? | Mental Maths - Class 1 PDF Download

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Who is Heavier?
Summary
To express mass of an object we use Kilogram (kg), gram (g) or milligram 
(mg) 
 1 kg = 1000 g and 1 g = 1000 mg
So
1 kg
1 g 1 mg >>
 Kilogram is used to weigh heavy objects, gram to weight lighter ones 
and milligrams to weight very light objects.
Example
 Kg g mg
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49
ME NT AL
MA
T
HS
 
Who is Heavier?
Summary
To express mass of an object we use Kilogram (kg), gram (g) or milligram 
(mg) 
 1 kg = 1000 g and 1 g = 1000 mg
So
1 kg
1 g 1 mg >>
 Kilogram is used to weigh heavy objects, gram to weight lighter ones 
and milligrams to weight very light objects.
Example
 Kg g mg
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Questions
1. Weight of a dog is measured in ________ (kg, g, mg)
2. 6 kg = ________ g
3. 4000 g = ________ kg
4. 12 g = ________ mg
5. 9000 mg = ________ g
6. Weight of one apple is measured in ________. (kg, g, mg)
7. Weight of a sharper is measured in ________. (kg, g, mg)
8. 2 kg + 15 kg + 113 kg = ________.
9. 5 kg + 700 g + 300 g = ________ kg.
10. 1200 g + 700 g + 100 g = ________ g = ________ kg.
11. 4500 kg – 500 kg = ________ kg.
12. 750 kg + 250 kg – 300 kg = ________ kg.
13. Which of the following is heaviest:
  (a) (b) (c)
5 kg 500 g 1500 mg
14. Which of the following is lightest:
  (a) (b) (c)
3 kg 30 g 300 mg
15. 700 g added to 5 kg is ________.
16. 5 kg 200 g added to 2 kg 350 g is ________.
17. 15 kg 450 g added to 4 kg 550 g is ________ kg.
18. Preeti bought 2 kg oranges, 3 kg apples and 1 kg grapes. How much weight 
she is carrying?
19. For a family function 100 kg of Barfi was bought and 82 kg of it was 
consumed. What quantity of Barfi is left?
20. Arrange the following in ascending order:
 15 kg, 25 kg, 500 g, 800 mg
Page 3


49
ME NT AL
MA
T
HS
 
Who is Heavier?
Summary
To express mass of an object we use Kilogram (kg), gram (g) or milligram 
(mg) 
 1 kg = 1000 g and 1 g = 1000 mg
So
1 kg
1 g 1 mg >>
 Kilogram is used to weigh heavy objects, gram to weight lighter ones 
and milligrams to weight very light objects.
Example
 Kg g mg
50
ME NT AL
MA
T
HS
Questions
1. Weight of a dog is measured in ________ (kg, g, mg)
2. 6 kg = ________ g
3. 4000 g = ________ kg
4. 12 g = ________ mg
5. 9000 mg = ________ g
6. Weight of one apple is measured in ________. (kg, g, mg)
7. Weight of a sharper is measured in ________. (kg, g, mg)
8. 2 kg + 15 kg + 113 kg = ________.
9. 5 kg + 700 g + 300 g = ________ kg.
10. 1200 g + 700 g + 100 g = ________ g = ________ kg.
11. 4500 kg – 500 kg = ________ kg.
12. 750 kg + 250 kg – 300 kg = ________ kg.
13. Which of the following is heaviest:
  (a) (b) (c)
5 kg 500 g 1500 mg
14. Which of the following is lightest:
  (a) (b) (c)
3 kg 30 g 300 mg
15. 700 g added to 5 kg is ________.
16. 5 kg 200 g added to 2 kg 350 g is ________.
17. 15 kg 450 g added to 4 kg 550 g is ________ kg.
18. Preeti bought 2 kg oranges, 3 kg apples and 1 kg grapes. How much weight 
she is carrying?
19. For a family function 100 kg of Barfi was bought and 82 kg of it was 
consumed. What quantity of Barfi is left?
20. Arrange the following in ascending order:
 15 kg, 25 kg, 500 g, 800 mg
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21. Arrange the following in descending order:
 5000 mg, 4000 g, 14 kg, 800 g
22. 250 g less than 2 kg is ________.
23. 5280 g = ________ kg + ________ g.
24. Five times of 7 kg = ________ kg = ________ g.
25. 3 kg 300 g subtracted from 5 kg 700 g is ________.
26. 5 kg 400 g subtracted from 10 kg is ________.
27. There are six boxes of weight 5 kg each in a bag. What is the weight of  
the bag?
28. 250 kg 700 g – 100 kg 500 g = ________.
29. 300 kg – 200 kg 600 g = ________.
30. 15 kg + 14 kg 600 g – 10 kg 400 g = ________.
Answer Key
1. Kilogram/kg 16. 7 kg 550 g
2. 6000 17. 20
3. 4 18. 6 kg
4. 12000 19. 18 kg
5. 9 20. 800 mg < 500 g < 15 kg < 25 kg
6. grams 21. 14 kg > 4000 g > 800 g > 500 mg
7. mg (milligram) 22. 1 kg 750 g
8. 130 kg 23. 5, 280
9. 6 24. 35, 35000
10. 2000, 2 25. 2 kg 400 g
11. 4 26. 4 kg 600 g
12. 700 27. 30 kg
13. (a) 5 kg 28. 150 kg 200 g
14. (c) 300 mg 29. 99 kg 400 g
15. 5 kg 700 g 30. 19 kg 200 g
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ME NT AL
MA
T
HS
 
Who is Heavier?
Summary
To express mass of an object we use Kilogram (kg), gram (g) or milligram 
(mg) 
 1 kg = 1000 g and 1 g = 1000 mg
So
1 kg
1 g 1 mg >>
 Kilogram is used to weigh heavy objects, gram to weight lighter ones 
and milligrams to weight very light objects.
Example
 Kg g mg
50
ME NT AL
MA
T
HS
Questions
1. Weight of a dog is measured in ________ (kg, g, mg)
2. 6 kg = ________ g
3. 4000 g = ________ kg
4. 12 g = ________ mg
5. 9000 mg = ________ g
6. Weight of one apple is measured in ________. (kg, g, mg)
7. Weight of a sharper is measured in ________. (kg, g, mg)
8. 2 kg + 15 kg + 113 kg = ________.
9. 5 kg + 700 g + 300 g = ________ kg.
10. 1200 g + 700 g + 100 g = ________ g = ________ kg.
11. 4500 kg – 500 kg = ________ kg.
12. 750 kg + 250 kg – 300 kg = ________ kg.
13. Which of the following is heaviest:
  (a) (b) (c)
5 kg 500 g 1500 mg
14. Which of the following is lightest:
  (a) (b) (c)
3 kg 30 g 300 mg
15. 700 g added to 5 kg is ________.
16. 5 kg 200 g added to 2 kg 350 g is ________.
17. 15 kg 450 g added to 4 kg 550 g is ________ kg.
18. Preeti bought 2 kg oranges, 3 kg apples and 1 kg grapes. How much weight 
she is carrying?
19. For a family function 100 kg of Barfi was bought and 82 kg of it was 
consumed. What quantity of Barfi is left?
20. Arrange the following in ascending order:
 15 kg, 25 kg, 500 g, 800 mg
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21. Arrange the following in descending order:
 5000 mg, 4000 g, 14 kg, 800 g
22. 250 g less than 2 kg is ________.
23. 5280 g = ________ kg + ________ g.
24. Five times of 7 kg = ________ kg = ________ g.
25. 3 kg 300 g subtracted from 5 kg 700 g is ________.
26. 5 kg 400 g subtracted from 10 kg is ________.
27. There are six boxes of weight 5 kg each in a bag. What is the weight of  
the bag?
28. 250 kg 700 g – 100 kg 500 g = ________.
29. 300 kg – 200 kg 600 g = ________.
30. 15 kg + 14 kg 600 g – 10 kg 400 g = ________.
Answer Key
1. Kilogram/kg 16. 7 kg 550 g
2. 6000 17. 20
3. 4 18. 6 kg
4. 12000 19. 18 kg
5. 9 20. 800 mg < 500 g < 15 kg < 25 kg
6. grams 21. 14 kg > 4000 g > 800 g > 500 mg
7. mg (milligram) 22. 1 kg 750 g
8. 130 kg 23. 5, 280
9. 6 24. 35, 35000
10. 2000, 2 25. 2 kg 400 g
11. 4 26. 4 kg 600 g
12. 700 27. 30 kg
13. (a) 5 kg 28. 150 kg 200 g
14. (c) 300 mg 29. 99 kg 400 g
15. 5 kg 700 g 30. 19 kg 200 g
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ACTIVITY
You have the following weights – 2 kg, 1 kg, 500 g, 100 g and 50 g . Add 
and write the total amount of weight. The first one is done for you.
Example
 
(ii) (iii) (iv)
(vi) (vii) (viii)
1.5 kg = 1kg ½
(v)
(x) (ix)
(xi)
50 g
100 g
500 g
1 kg
2 kg
500 g
500 g
500 g
50 g
100 g
100 g
100 g
50 g
100 g
100 g
50 g
100 g
1 kg
2 kg
500 g
2 kg
1 kg
500 g
1 kg
1 kg
2 kg
2 kg
2 kg
2 kg
2 kg
1 kg
1 kg
1 kg
50 g
500 g
100 g
100 g
50 g
100 g
500 g
500 g
1 kg
1 kg
2 kg
1 kg
1 kg