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

Decimals Class- 7th RS Aggarwal Exe-3A 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-3A to develop skill and confidence. Visit official Website CISCE for detail information about ICSE Board Class-7 Mathematics.

## Decimals Class- 7th RS Aggarwal Exe-3A 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-3A Academic Session 2023 – 2024

### Exercise – 3A

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

#### 1. Convert the following decimals into like decimals :

##### (i) 8.1, 9.4, 6.05, 12

Solution: 8.1, 9.4, 6.05, 12

= 8.10, 9.40, 6.05, 12.00

(Taken upto 2 decimal places)

##### (ii) 6.35, 11.8, 9.125, 32.04, 9

Solution: 6.35, 11.8, 9.125, 32.04, 9

= 6.350, 11.800, 9.125, 32.040, 9.000

(Taken upto 3 decimal places)

##### (iii) 6.005, 2, 0.6, 1.78, 14.3

Solution: 6.005, 2, 0.6, 1.78, 14.3

= 6.005, 2.000, 0.600, 1.780, 14.300

(Taken upto 3 decimal places)

##### (iv) 0.72, 53.76, 16, 8.304, 2.3754

Solution: 0.72, 53.76, 16, 8.304, 2.3754

= 0.7200, 53.7600, 16.0000, 8.3040, 2.3754

(Taken upto 4 decimal places)

#### 2. Write each of the following decimals into expanded form :

##### (i) 16.74

Solution: 16.74

Expanded form = [10 + 6 + (7/10) + (4/100)]

##### (ii) 243.689

Solution: 243.689

Expanded form = [200 + 40 + 3 + (3/10) + (8/100) + (9/1000)]

##### (iii) 9.3578

Solution: 9.3578

Expanded form = [9 + (3/10) + (5/100) + (7/1000) + (8/10000)]

##### (iv) 2314.57

Solution: 2314.57

Expanded form = [200 + 300 + 10 + 4 + (5/10) + (7/10)]

Solution: 0.8

= (8/10)

= (4/5)

Solution: 0.45

= (0.45/100)

= (9/20)

Solution: 1.6

= (1.6/10)

= (8/5)

= 1(3/5)

Solution: 4.75

= (4.75/100)

= (19/4)

= 4(3/4)

Solution: 0.345

= (0.345/1000)

= (69/200)

Solution: 64.015

= (64.015/1000)

= (12803/200)

= 64(3/200)

Solution: 12.725

= (12.725/1000)

= (509/40)

= 12(29/40)

Solution: 0.0024

= (24/10000)

= (3/1250)

#### 4. Convert each of the following fractions into a decimal :

##### (i) (19/10)

Solution: (19/10)

= 1.9

##### (ii) (243/100)

Solution: (243/100)

= 2.43

##### (iii) (51/100)

Solution: (51/100)

= 0.51

##### (iv) (9/100)

Solution: (9/100)

= 0.09

##### (v) (72/1000)

Solution: (72/1000)

= 0.072

Solution: (3/5)

= 0.6

Solution: (7/8)

= 0.875

##### (viii) (37/40)

Solution: (37/40)

= 0.925

Solution: 4(3/8)

= (35/8)

= 4.375

##### (x) 9(1/25)

Solution: 9(1/25)

= (226/25)

= 9.04

##### (xi) 2(9/16)

Solution: 2(9/16)

= (41/16)

= 2.5625

##### (xii) 4(11/125)

Solution: 4(11/125)

= (511/125)

= 4.088

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