Measurement Worksheet Solutions - Class 4 Mathematics | CBSE Worksheet with Answers

(ii) 45 m 50 cm
Ans: 45 × 100 + 50 = 4 500 + 50 = 4 550 cm
Q4: Express as centimetres: 1 m = 100 cm
(i) 12 m
Ans: 12 × 100 = 1 200 cm

(ii) 152 m
Ans: 152 × 100 = 15 200 cm

(iii) 16 m
Ans: 16 × 100 = 1 600 cm

(iv) 5 m 40 cm
Ans: 5 × 100 + 40 = 540 cm

(v) 96 m 5 cm
Ans: 96 × 100 + 5 = 9 605 cm
Q5: Express as millimetres: 1 cm = 10 mm
(i) 19 cm
Ans: 19 × 10 = 190 mm

(ii) 73 cm
Ans: 73 × 10 = 730 mm

(iii) 8 cm
Ans: 8 × 10 = 80 mm

(iv) 97 cm 8 mm
Ans: 97 × 10 + 8 = 978 mm
Q6: Express as metres:
1 cm = 0.01 m 

(i) 2,465 cm
To convert centimetres to metres, multiply by 0.01.
= 2 465 × 0.01 = 24.65 m

(ii) 73 cm
To convert centimetres to metres, multiply by 0.01.
= 73 × 0.01 = 0.73 m

(iii) 172 cm
To convert centimetres to metres, multiply by 0.01.
= 172 × 0.01 = 1.72 m

(iv) 483 cm
To convert centimetres to metres, multiply by 0.01.
= 483 × 0.01 = 4.83 m

(v) 450 cm
To convert centimetres to metres, multiply by 0.01.
= 450 × 0.01 = 4.50 m

Q7: Express as kilometres:
1 m = 0.001 km

(i) 8,560 m
To convert metres to kilometres, divide by 1 000.
8 560 ÷ 1 000 = 8.560 km

(ii) 9,567 m
To convert metres to kilometres, divide by 1 000.
9 567 ÷ 1 000 = 9.567 km

Q8: Express as centimetres:
1 cm = 0.1 mm

(i) 37 mm
To convert millimetres to centimetres, divide by 10.
37 ÷ 10 = 3.7 cm

(ii) 83 mm
To convert millimetres to centimetres, divide by 10.
83 ÷ 10 = 8.3 cm

Q9: Add:
(i) 7 m 62 cm + 12 m 45 cm
Ans: Add metres and centimetres separately.
Metres: 7 + 12 = 19 m
Centimetres: 62 + 45 = 107 cm = 1 m 7 cm
Total: 19 m + 1 m 7 cm = 20 m 7 cm

(ii) 12 cm 6 mm + 25 cm 9 mm
Ans: Centimetres: 12 + 25 = 37 cm
Millimetres: 6 + 9 = 15 mm = 1 cm 5 mm
Total: 37 cm + 1 cm 5 mm = 38 cm 5 mm

(iii) 2 cm 7 mm + 4 cm 9 mm
Ans: Centimetres: 2 + 4 = 6 cm
Millimetres: 7 + 9 = 16 mm = 1 cm 6 mm
Total: 6 cm + 1 cm 6 mm = 7 cm 6 mm

(iv) 5 km 439 m + 16 km 851 m
Ans: Kilometres: 5 + 16 = 21 km
Metres: 439 + 851 = 1 290 m = 1 km 290 m
Total: 21 km + 1 km 290 m = 22 km 290 m

(v) 78 km 126 m + 93 km 508 m
Ans: Kilometres: 78 + 93 = 171 km
Metres: 126 + 508 = 634 m
Total: 171 km 634 m

Q10: Subtract:
(i) 18 cm 4 mm - 7 cm 7 mm
Ans: Write 18 cm 4 mm as 17 cm 14 mm (borrow 1 cm = 10 mm).
17 cm 14 mm − 7 cm 7 mm = (17 − 7) cm and (14 − 7) mm = 10 cm 7 mm

(ii) 86 cm 2 mm − 57 cm 5 mm
Ans: Write 86 cm 2 mm as 85 cm 12 mm (borrow 1 cm).
85 cm 12 mm − 57 cm 5 mm = (85 − 57) cm and (12 − 5) mm = 28 cm 7 mm

(iii) 76 km 293 m − 38 km 508 m
Ans: Write 76 km 293 m as 75 km 1 293 m (borrow 1 km = 1 000 m).
75 km 1 293 m − 38 km 508 m = (75 − 38) km and (1 293 − 508) m = 37 km 785 m

(iv) 125 m 12 cm − 68 m 56 cm
Ans: Convert 125 m 12 cm to 124 m 112 cm (borrow 1 m = 100 cm).
124 m 112 cm − 68 m 56 cm = (124 − 68) m and (112 − 56) cm = 56 m 56 cm

(v) 37 km 832 m − 15 km 948 m
Ans: Write 37 km 832 m as 36 km 1 832 m (borrow 1 km = 1 000 m).
36 km 1 832 m − 15 km 948 m = (36 − 15) km and (1 832 − 948) m = 21 km 884 m

Q11: Express as kg and g:
1 g = 0.001 kg

(i) 3,208 g
To convert grams to kilograms, multiply by 0.001.
3 208 × 0.001 = 3.208 kg

(ii) 12,670 g
12 670 × 0.001 = 12.670 kg

(iii) 18,196 g
18 196 × 0.001 = 18.196 kg

(iv) 8,005 g
8 005 × 0.001 = 8.005 kg

(v) 38,450 g
38 450 × 0.001 = 38.450 kg

Q12: Answer the following questions:
(i) Kartik's doll weighs 2 kg 890 g and Manohar's doll weighs 3 kg 890 g. What is the weight of both the dolls?

(ii) The weight of a watermelon is 3 kg 425 g. The weight of a pineapple is 2 kg 530 g. By how much is the watermelon heavier?
Ans: Watermelon = 3 kg 425 g
Pineapple = 2 kg 530 g
Subtract:
Write 3 kg 425 g as 2 kg 1 425 g (borrow 1 kg = 1 000 g).
2 kg 1 425 g − 2 kg 530 g = 0 kg and (1 425 − 530) g = 895 g
So, the watermelon is heavier by 895 g.

(iii) Sanjay bought 100 kg of wheat for his family for a month. Out of this, the quantity of wheat consumed was 76 kg 450 g. What quantity of wheat was left?
Ans: Total wheat = 100 kg 0 g
Consumed = 76 kg 450 g
Write 100 kg 0 g as 99 kg 1 000 g (borrow 1 kg = 1 000 g).
99 kg 1 000 g − 76 kg 450 g = (99 − 76) kg and (1 000 − 450) g = 23 kg 550 g
So, quantity left = 23 kg 550 g

Q13: Express as l:
1 ml = 0.001 l

(i) 2,645 ml
2 645 × 0.001 = 2.645 l

(ii) 45,673 ml
45 673 × 0.001 = 45.673 l

(iii) 90,003 ml
90 003 × 0.001 = 90.003 l

(iv) 56,210 ml
56 210 × 0.001 = 56.210 l

(v) 1,309 ml
1 309 × 0.001 = 1.309 l

Q14: Express as ml:
1 l = 1000 ml
(i) 83 l 
Ans: 83 × 1 000 = 83 000 ml

(ii) 103 l
Ans: 103 × 1 000 = 103 000 ml

(iii) 29 l 785 ml
Ans: 29 × 1 000 + 785 = 29 785 ml

(iv) 5 l 210 ml
Ans: 5 × 1 000 + 210 = 5 210 ml

(v) 2 l
Ans: 2 × 1 000 = 2 000 ml
Q15: Subtract: 
(i) 63 l 156 ml − 34 l 475 ml
Ans: Write 63 l 156 ml as 62 l 1 156 ml (borrow 1 l = 1 000 ml).
62 l 1 156 ml − 34 l 475 ml = (62 − 34) l and (1 156 − 475) ml = 28 l 681 ml

(ii) 60 l 708 ml − 18 l 619 ml
Ans: 60 − 18 = 42 l; 708 − 619 = 89 ml → 42 l 89 ml

(iii) 8 l 425 ml − 3 l 720 ml
Ans: Write 8 l 425 ml as 7 l 1 425 ml (borrow 1 l).
7 l 1 425 ml − 3 l 720 ml = (7 − 3) l and (1 425 − 720) ml = 4 l 705 ml

(iv) 18 l 636 ml − 12 l 950 ml
Ans: Write 18 l 636 ml as 17 l 1 636 ml (borrow 1 l).
17 l 1 636 ml − 12 l 950 ml = (17 − 12) l and (1 636 − 950) ml = 5 l 686 ml

Q16: Add:
(i) 12 l 490 ml + 15 l 540 ml
Ans: Add litres and millilitres separately.
Litres: 12 + 15 = 27 l
Millilitres: 490 + 540 = 1 030 ml = 1 l 30 ml
Total: 27 l + 1 l 30 ml = 28 l 30 ml

(ii) 21 l 260 ml + 18 l 905 ml
Ans: Litres: 21 + 18 = 39 l
Millilitres: 260 + 905 = 1 165 ml = 1 l 165 ml
Total: 39 l + 1 l 165 ml = 40 l 165 ml

(iii) 62 l 275 ml + 39 l 890 ml
Ans: Litres: 62 + 39 = 101 l
Millilitres: 275 + 890 = 1 165 ml = 1 l 165 ml
Total: 101 l + 1 l 165 ml = 102 l 165 ml

(iv) 5 l 750 ml + 8 l 125 ml
Ans: Litres: 5 + 8 = 13 l
Millilitres: 750 + 125 = 875 ml
Total: 13 l 875 ml

Q17: 12,705 ml = ______ l _____ ml.
Ans: 12 705 ml = 12 l 705 ml.
Q18: 36 km = ______ m = ______ cm.
Ans: 36 km = 36 × 1 000 = 36 000 m = 36 000 × 100 = 3 600 000 cm.
Q19: 75 mm = ______ cm _______ mm.
Ans: 75 mm = 75 ÷ 10 = 7 cm and remainder 5 mm → 7 cm 5 mm.
Q20: 12 kg 108 g = ______ g.
Ans: 12 kg = 12 × 1 000 = 12 000 g
12 000 g + 108 g = 12 108 g.