Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.

1. 4.4
+ 1.5

Answer: 5.9

44 + 15 = 59
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 4.4 + 1.5 = 5.9

2. 35.9
+ 17.5

Answer: 53.4

359 + 175 = 534
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 35.9 + 17.5 = 53.4

3. 0.34
+ 0.23

Answer: 0.57

34 + 23 = 57
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.34 + 0.23 = 0.57

4. 1.81
+ 4.64

Answer: 6.45

181 + 464 = 645
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 1.81 + 4.64 = 6.45

5. 34.05
+ 12.50

Answer: 46.55

3405 + 1250 = 4655
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 34.05 + 12.50 = 46.55