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Find the sum in each of the following:
(a) 0.007 + 8.5 + 30.08
(b) 15 + 0.632 + 13.8
(c) 27.076 + 0.55 + 0.004
(d) 25.65 + 9.005 + 3.7
(e) 0.75 + 10.425 + 2
(f) 280.69 + 25.2 + 38

Solution:

To add two or more unlike decimals, we first have to convert them into like decimals by adding or removing extra zeros from the right of the decimal point.

(a) 0.007 + 8.5 + 30.08
= 0.007 + 8.500 + 30.080 = 38.587

(b) 15 + 0.632 + 13.8
= 15.000 + 0.632 + 13.800 = 29.432

(c) 27.076 + 0.55 + 0.004
= 27.076 + 0.550 + 0.004 = 27.630

(d) 25.65 + 9.005 + 3.7
= 25.650 + 9.005 + 3.700 = 38.355

(e) 0.75 + 10.425 + 2
= 0.750 + 10.425 + 2.000 = 13.175

(f) 280.69 + 25.2 + 38
= 280.69 + 25.20 + 38.00 = 343.89

You can also use the adding decimals calculator to check your answer.

NCERT Solutions for Class 6 Maths Chapter 8 Exercise 8.5 Question 1

Find the sum in each of the following: (a) 0.007 + 8.5 + 30.08 (b) 15 + 0.632 + 13.8 (c) 27.076 + 0.55 + 0.004 (d) 25.65 + 9.005 + 3.7 (e) 0.75 + 10.425 + 2 (f) 280.69 + 25.2 + 38

Summary:

The sum of (a) 0.007 + 8.5 + 30.08 (b) 15 + 0.632 + 13.8 (c) 27.076 + 0.55 + 0.004 (d) 25.65 + 9.005 + 3.7 (e) 0.75 + 10.425 + 2 (f) 280.69 + 25.2 + 38 are (a) 38.587 (b) 29.432 (c) 27.630 (d) 38.355 (e) 13.175 (f) 343.89

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