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Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.


1.    2.5
+ 3.3
Answer: 5.8
 25  + 33  = 58 
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 2.5 + 3.3 = 5.8 

2.    24.4
+ 26.5
Answer: 50.9
 244  + 265  = 509 
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 24.4 + 26.5 = 50.9 

3.    0.45
+ 0.33
Answer: 0.78
 45  + 33  = 78
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.45  + 0.33 = 0.78


4.    1.12
+ 3.34
Answer: 4.46
 112  + 334  = 446 
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 1.12 + 3.34 = 4.46

5.    15.18
+ 42.73
Answer: 57.91
 1518 + 4273 = 5791
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 15.18  + 42.73  = 57.91

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