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Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.


1.    2.4
+ 3.3
Answer: 5.7
 24  + 33  = 57 
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 2.4 + 3.3 = 5.7 

2.    47.8
+ 35.7
Answer: 83.5
 478  + 357  = 835 
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 47.8 + 35.7 = 83.5 

3.    0.46
+ 0.25
Answer: 0.71
 46  + 25  = 71
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.46  + 0.25 = 0.71


4.    1.97
+ 2.96
Answer: 4.93
 197  + 296  = 493 
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 1.97 + 2.96 = 4.93

5.    46.55
+ 23.17
Answer: 69.72
 4655 + 2317 = 6972
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 46.55  + 23.17  = 69.72

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