Answer:
7.752
Explanation:
Well since the both have the same amount of didgets you can just line up like if it were adding thousands.
5. 1 2 8
2. 6 2 4
_________
So were going to add 8 + 4=12
Then so since it was 12 were just going to put 2 and then add a 1 to out result for 2 + 2
2 + 2=4+ the 1 we have to add since our last question was 10 and above so our answer is 5
Next add 6 + 1=7
Now our last step is to add 5 + 2 which=7
So you answer should look like this.
_________
7. 7 5 2
hope this helps have a great day:)