Mathematics
Grade6
Easy
Question
12.9 + 2.9
- 15.8
- 12.8
- 15.0
- 7.9999
Hint:
In decimal addition, we need to remember that we need to align the second decimal number in such a way that the decimal point of that number is just below the decimal point of the first number. Then we perform normal addition.
The correct answer is: 15.8
Step by step solution:
Given two decimal numbers are : 12.9 and 2.9
Now, we need to align the numbers in such a way that the decimal point of one number is just below the decimal point of the other number.
12.9
+ 2.9
15.8 (answer)
Thus, the correct answer is option (a) 15.8
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