Page 139 - Mathematics_Std_4

×=10. Write 10 below 10 then
4. Multiply: 5 2
subtract,: 10 –10 0.
=
1
Therefore, = 0.5
2
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Example 3

Convert 1 into decimal.
100

Steps Solution
1. Divide the numerator by the denominator: ÷1 100, 0.01

it is not sufficient. Write 0 above the digit 1 in the 100 1
answer position, then put a decimal point.
=
2. Multiply: × 0 10 0. Write 0 below 1 then subtract: − 0
1 − =0 1. 10
3. Write a zero in front of the 1 to make it 10, then − 0

divide: 0 ÷1 100 , it is not sufficient. Write 0 to the 100
right of the decimal point in the answer position, − 100
then write 0 in front of 10 to make it 100. 0

4. Divide 100 by 100 to get 1. Write 1 in the answer
position to get 0.01.
5. Multiply: × 1 =100 100.Write 100 below 100 then
subtract:100 –100 0..
=
1
Therefore, = 0.01.
100

Exercise 3

Convert the following fractions into decimals:

3 8 7 12
1. (a) (b) (c) (d)
10 10 10 10
2
1
2. (a) 5 (b) 5 (c) 3 (d) 7
2
5
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06/11/2024 17:17:46
MATHEMATICS STD 4 PB 2024.indd 132
MATHEMATICS STD 4 PB 2024.indd 132 06/11/2024 17:17:46