Page 120 - Maths Class 05
P. 120
Example : Convert the following in mm.
a. 5 cm b. 4 m
Solution : a. 5 cm = 5 × 10 mm
= 50 mm ( 1 cm = 10 mm)
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b. 4 m = 4 × 100 cm ( 1 m = 100 cm)
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= 400 cm
= 400 × 10 mm ( 1 cm = 10 mm)
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= 4000 mm
Example : Convert the following in mm.
a. 9 cm b. 5 m c. 3 km
Solution : a. 9 cm = 9 × 10 mm
= 90 mm ( 1 cm = 10 mm)
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b. 5 m = 5 × 100 cm ( 1 m = 100 cm)
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= 500 cm
= 500 × 10 mm ( 1 cm = 10 mm)
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= 5000 mm
c. 3 km = 3 × 1000 m ( 1 km = 1000 m)
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= 3000 m
= 3000 × 100 cm ( 1 m = 100 cm)
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= 300000 cm
= 300000 × 10 mm
= 3000000 mm ( 1 cm = 10 mm)
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Example : Convert the following in cm.
a. 7 m b. 3 km
Solution : a. 7 m = 7 × 100 cm ( 1 m = 100 cm)
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= 700 cm
b. 3 km = 3 × 1000 m ( 1 km = 1000 m)
\
= 3000 m
= 3000 × 100 cm ( 1 m = 100 cm)
\
= 300000 cm
Mathematics-5 120
