Page 142 - Mathematics_Std_4

10. + 250.8 22.4 = 11. + 325.4 86.8 = 12. 58.0 2.6 =
+
13. + 224.2 4.5 = 14. +79.3 46.1 = 15. 188.3 + =15.9

16. + 92.6 = 29.8
FOR ONLINE READING ONLY

Addition of decimal numbers with more than one decimal
place

Numbers with more than one decimal place can be added by
starting with decimal parts then whole numbers.

Example 1

+2.45 0.31 =
Steps Solution

1. Add the decimals: 45 + = 31 76. Write 76 2.45
in decimal place.
+ 0.31
2. Add the whole numbers: + 2 = 0 2. Write 2 2.76
in the whole number place.

Therefore, +2.45 0.31 2.76.
=

Example 2

+ 7.98 2.65 =

Steps Solution
1. Add the decimals: 98 65 163. Write 63 in +1
=
+
the decimal place. Shift 1 to the whole numbers 7.98
position. + 2.65
2. Add the whole numbers: + + =1 7 2 10. Write 10 10.63
in the whole number place.

Therefore,7.98 2.65 10.63.
+
=

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07/11/2024 14:05:56
MATHEMATICS STD 4 PB 2024.indd 135 07/11/2024 14:05:56
MATHEMATICS STD 4 PB 2024.indd 135