39.7 + 25.32 + 87.65 + 3.43 = ___________
156.1
We need to convert the given decimals into like decimals and add them up as follows.
2 2 1
_______
3 9. 7 0
2 5. 3 2
8 7. 6 5
+ 3. 4 3
___________
1 5 6. 1 0