Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.

1. 3.3
+ 4.9

Answer: 8.2

33 + 49 = 82
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 3.3 + 4.9 = 8.2

2. 19.6
+ 35.9

Answer: 55.5

196 + 359 = 555
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 19.6 + 35.9 = 55.5

3. 0.15
+ 0.4

Answer: 0.55

15 + 40 = 55
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.15 + 0.4 = 0.55

4. 3.44
+ 4.83

Answer: 8.27

344 + 483 = 827
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 3.44 + 4.83 = 8.27

5. 17.67
+ 18.16

Answer: 35.83

1767 + 1816 = 3583
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 17.67 + 18.16 = 35.83