Decimals Class- 7th RS Aggarwal Exe-3B Goyal Brothers ICSE Math Solution

Decimals Class- 7th RS Aggarwal Exe-3B Goyal Brothers ICSE Math Solution . We provide step by step Solutions of lesson-3 Decimals for ICSE Class-7 Foundation RS Aggarwal Mathematics of Goyal Brothers Prakashan . Our Solutions contain all type Questions of Exe-3B to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.

Decimals Class- 7th RS Aggarwal Exe-3B Goyal Brothers ICSE Math Solution

Decimals Class- 7th RS Aggarwal Exe-3B Goyal Brothers ICSE Math Solution

Board ICSE
Publications Goyal brothers Prakashan
Subject Maths
Class 7th
Chapter-3 Decimals
Writer RS Aggrawal
Book Name Foundation
Topics Solution of Exe-3B
Academic Session 2023 – 2024

Exercise – 3B

Decimals Class- 7th RS Aggarwal Exe-3B Goyal Brothers ICSE Math Solution

1. Add :

(i) 9.67, 15.98

Solution: 9.67, 15.98

= 9.67 + 15.98

= 25.65

(ii) 6.9, 23.84

Solution: 6.9, 23.84

= 6.9 + 23.84

= 30.74

(iii) 35.67, 18.794, 4.9, 31.82

Solution: 35.67, 18.794, 4.9, 31.82

= 5.67 + 18.794 + 4.9 + 31.82

= 91. 184

(iv) 63.05, 24.839, 3.7, 16.85

Solution: 63.05, 24.839, 3.7, 16.85

= 63.05 + 24.839 + 3.7 + 16.85

= 108.439

2. Subtract :

(i) 2.975 from 8.23

Solution: 2.975 from 8.23

= 8.230 – 2.975                (convert 8.23 into like decimal)

= 5.255

(ii) 0.75 from 1.3

Solution: 0.75 from 1.3

= 1.30 – 0.75                    (convert 1.3 into like decimal)

= 0.55

(iii) 6.054 from 11.26

Solution: 6.054 from 11.26

= 11.260 – 6.054            (convert 11.26 into like decimal)

= 5.206

(iv) 134.68 from 201.3

Solution: 134.68 from 201.3

= 201.30 – 134.68          (convert 201.3 into like decimal)

= 66.62

3. Take out 6.345 from 8.1.

Solution: 6.345 from 8.1

= 8.1 – 6.345

= 1.755

4. What is the difference between 68.5 and 0.685?

Solution: 68.5 and 0.685

= 68.5 – 0.685

= 67.815

5. What is the excess of 90 over 53.865?

Solution: 90 over 53.865

= 90.000 – 53.865                  (convert 90 into like decimal)

= 36.135

6. What should be subtracted from 50 to get 34.57?

Solution: 50 to get 34.57

= 50.00 – 34.57                      (convert 50 into like decimal)

= 15.43

7. What should be added to 63.47 to get 91?

Solution: 63.47 to get 91

= 91 – 63.47

= 27.53

8. Manish buys a ₹8.75 metro ticket with a ₹20 note. How much money does he get back?

Solution: Total money he had = ₹20

Expenditure on ticket = ₹8.75

= 20 – 8.75

= ₹11.25

He has ₹11.25 left

9. A baby increases in weight from 5.58 kg to 6.16 kg. How much weight has the baby gained?

Solution: 5.58 kg to 6.16 kg

= 6.16 – 5.58

= 0.58

10. Simplify :

(i) 67 + 13.85 – 29.904

Solution: 67 + 13.85 – 29.904

= 80.850 – 29.904

= 50.946

(ii) 16.753 + 4.06 – 13.89

Solution: 16.753 + 4.06 – 13.89

= 20.813 – 13.890

= 6.923

(iii) 1 – 10.5 + 12.213

Solution: 1 – 10.5 + 12.213

= 13.213 – 10.500

= 2.713

(iv) 81 – 15.68 -4.2

Solution: 81 – 15.68 -4.2

= 81 – 19.88

= 61.12

(v) 555 – 55.5 – 5.555

Solution: 555 – 55.5 – 5.555

= 555 – 61.055

= 433.945

(vi) 100 – 32.5 – 46.74 – 12.925

Solution: 100 – 32.5 – 46.74 – 12.925

= 100 – 92.165

= 7.835

— : end of Decimals Class- 7th RS Aggarwal Exe-3B Goyal Brothers ICSE Math Solution:–

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