Page 141 - Mathematics_Std_4

Example 2

+ 0.5 = 0.2

Steps
FOR ONLINE READING ONLY
1. Add the digits to the right of the decimal point, 0.5
5 +=2 7.Write 7 in the decimal place. + 0.2

2. Add the whole numbers: 0 +=0 0. Write 0 in 0.7
the place for the whole number.

Therefore, 0.5 + = 0.2 0.7.

Example 3

1.7
+ 2.6

Steps
1. Add the digits to the right of the decimal point: +1
1.7
7 +=6 13.Write 3 in the decimal place. The +2.6
remaining whole number is 1. Shift 1 to the 4.3

whole numbers position.

2. Add the whole numbers: ++ =1 1 2 4.Write 4 in
the whole number place.
Therefore, 1.7 2.6 4.3.
+
=

Exercise 4

1. + 0.4 0.7 = 2. + 0.6 0.3 = 3. 126.7 + =2.1

4. + 6.4 7.9 = 5. + 23.4 5.2 = 6. + 36.7 5.4 =

7. + 34.9 98.5 = 8. +86.5 =12.2 9. + 137.1 28.7 =

134

06/11/2024 17:17:47
MATHEMATICS STD 4 PB 2024.indd 134 06/11/2024 17:17:47
MATHEMATICS STD 4 PB 2024.indd 134