Subtract and solve \( 42.345-34.71 \)

First, let's align the decimal points for easy subtraction. When you line them up, you have: ``` 42.345 - 34.710 ``` Now, subtract each column from right to left: Starting from the thousandths: 5 - 0 = 5 Then the hundredths: 4 - 1 = 3 Next the tenths: 3 - 7 (Since you can't subtract 7 from 3, borrow 1 from the 2 in the units column, turning it into a 1 and making the 3 into 13): 13 - 7 = 6 Now for the units: 1 - 4 (Again, borrow from the 4 in the tens column, making it 3): 11 - 4 = 7 Lastly, the tens: 3 - 3 = 0 (No borrowing needed here). Putting it all together, we get: \( 42.345 - 34.710 = 7.635 \) So, the answer is \( \boxed{7.635} \).