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Type the sum obtained on adding the following decimals. 
1. 2.7 + 3.9 Answer: 6.6 27 + 39 = 66
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 2.7 + 3.9 = 6.6
2. 12.1 + 45.1 Answer: 57.2 121 + 451 = 572
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 12.1 + 45.1 = 57.2
3. 0.24 + 0.36 Answer: 0.6 24 + 36 = 60
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.24 + 0.36 = 0.6
4. 4.04 + 4.72 Answer: 8.76 404 + 472 = 876
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 4.04 + 4.72 = 8.76
5. 21.59 + 48.79 Answer: 70.38 2159 + 4879 = 7038
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 21.59 + 48.79 = 70.38
Try the Quiz : Arithmetic Homework Help : Decimal Addition
