Page 87 - Math Skill - 5

Decimal 85

Let’s Attempt

7
Example 1: Write in decimal form.
2
Solution: Alternative Approach
3.5 7 = 7 × 5 = 35 = 35 .
2 7.0 2 2 5 10
– 6 7
1 0 ⇒ = 3.5
– 1 0 2
× 7 in decimal form is 3.5.
2

1
Example 2: Write 2 in decimal form. Alternative Approach
8
1 17
Solution: 2 can be written as
2 .1 2 5 8 8
8 1 7 17 125
– 1 6 = ×
1 0 8 125
– 8 = 2125
2 0 1000
– 1 6 = 2.125
4 0
– 4 0
×

Exercise 6.2

1. Convert the following decimals into fractions.

(a) 0.2 (b) 0.25 (c) 0.245 (d) 3.01

(e) 3.75 (f) 45.54 (g) 5.03 (h) 83.25

2. Convert the following fractions into decimals.

(a) 3 (b) 6 (c) 5 (d) 2015
5 25 4 100

(e) 63 (f) 6 5 (g) 245 (h) 3 2
125 8 100 25