Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.

1. 1.7
+ 4.3

Answer: 6.0

17 + 43 = 60
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 1.7 + 4.3 = 6.0

2. 19.7
+ 13.8

Answer: 33.5

197 + 138 = 335
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 19.7 + 13.8 = 33.5

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. 1.42
+ 3.33

Answer: 4.75

142 + 333 = 475
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 1.42 + 3.33 = 4.75

5. 23.46
+ 29.65

Answer: 53.11

2346 + 2965 = 5311
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 23.46 + 29.65 = 53.11