Arithmetic Homework Help : Decimal Addition

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Type the sum obtained on adding the following decimals.

1. 1.2
+ 4.5

Answer: 5.7

12 + 45 = 57
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 1.2 + 4.5 = 5.7

2. 23.5
+ 29.6

Answer: 53.1

235 + 296 = 531
There is 1 decimal place in the numbers being added.
So the sum must have 1 decimal place.
Thus, 23.5 + 29.6 = 53.1

3. 0.37
+ 0.46

Answer: 0.83

37 + 46 = 83
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 0.37 + 0.46 = 0.83

4. 1.76
+ 3.48

Answer: 5.24

176 + 348 = 524
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 1.76 + 3.48 = 5.24

5. 46.93
+ 13.98

Answer: 60.91

4693 + 1398 = 6091
There are 2 decimal places in the numbers being added.
So the sum must have 2 decimal places.
Thus, 46.93 + 13.98 = 60.91