NCERT Solutions (Extra Questions): Decimals

# NCERT Solutions for Class 8 Maths - (Extra Questions): Decimals

Q1: Express the following as cm using decimals.
(a) 2 mm
(b) 30 mm
(c) 116 mm
(d) 4 cm 2 mm
(e) 162 mm
(f) 83 mm
Ans:

Q2:
(a) The length of Ramesh’s notebook is 9 cm and 5 mm. What will be its length in cm?
(b) The length of a young gram plant is 65 mm. Express its length in cm.
Ans:

Q3: Write each of the following as decimals:
(a)
(b) 137 + (5/100)
(c)
(d)
(e)
Ans:
(a) 20 + 9 + 0.4 + 0.01 = 29.41
(b) 137 + 0.05 = 137.05
(c) 0.7 + 0.06 + 0.004 = 0.764
(d) 23 + 0.2 + 0.006 = 23.206
(e) 700 + 20 + 5 + 0.09 = 725.09

Q4: Write as fractions in lowest terms:
(a) 0.60
(b) 0.05
(c) 0.75
(d) 0.18
(e) 0.25
(f) 0.125
(g) 0.066
Ans:

The document NCERT Solutions for Class 8 Maths - (Extra Questions): Decimals is a part of the Class 6 Course NCERT Textbooks & Solutions for Class 6.
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## FAQs on NCERT Solutions for Class 8 Maths - (Extra Questions): Decimals

 1. What is the process for adding and subtracting decimals?
Ans. To add or subtract decimals, align the decimal points and then perform the operation as you would with whole numbers. Carry over any decimals to the final answer.
 2. How do you multiply decimals?
Ans. To multiply decimals, ignore the decimal points and multiply the numbers as if they were whole numbers. Count the total number of decimal places in the numbers being multiplied and place the decimal point in the final answer accordingly.
 3. Can you divide decimals? If so, how?
Ans. Yes, decimals can be divided. To divide decimals, move the decimal point in both the dividend and divisor to make the divisor a whole number. Then perform the division as you would with whole numbers and place the decimal point in the quotient.
 4. How can decimals be converted to fractions?
Ans. To convert a decimal to a fraction, count the number of decimal places in the number. This number of decimal places will be the denominator of the fraction. The numerator is the decimal number without the decimal point.
 5. Why are decimals used in everyday life?
Ans. Decimals are used in everyday life to represent values that are not whole numbers, such as money, measurements, and percentages. They provide a more precise way of expressing quantities and values.

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