Solution:
Given expression,4.37+9 .638+17.007+6.8.
Then,
Write the numbers in the decimal form and add,
| Tens | Ones | Tenths | Hundredths | Thousandths |
| 0 | 4 | 3 | 7 | 0 |
0 | 9 | 6 | 3 | 8 | |
1 | 7 | 0 | 0 | 7 | |
0 | 6 | 8 | 0 | 0 | |
= | 3 | 7 | 8 | 1 | 5 |
=37.815
Hence, the sum of 4. 370 + 9.638 + 17.007 + 6.800 is 37.815.
Therefore, option 4 is correct.
