Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.

1. 3.5
+ 3.7

Answer: 7.2

35 + 37 = 72
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 3.5 + 3.7 = 7.2

2. 13.3
+ 36.3

Answer: 49.6

133 + 363 = 496
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 13.3 + 36.3 = 49.6

3. 0.19
+ 0.41

Answer: 0.6

19 + 41 = 60
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.19 + 0.41 = 0.6

4. 4.51
+ 3.69

Answer: 8.2

451 + 369 = 820
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 4.51 + 3.69 = 8.2

5. 49.26
+ 28.66

Answer: 77.92

4926 + 2866 = 7792
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 49.26 + 28.66 = 77.92