Question

86.51 - 54.35; 77.6 - 55.92

Explanation:

Step1: Subtract 54.35 from 86.51

$86.51 - 54.35 = 32.16$ (Wait, there seems to be a mistake in the original handwritten subtraction. Let's do it correctly. 86.51 - 54.35: 86.51 - 54 = 32.51, then -0.35 = 32.16? Wait, no, 86.51 - 54.35: 86 - 54 = 32, 0.51 - 0.35 = 0.16, so total 32.16. But the handwritten result is 77.6? That's incorrect. Then the second subtraction: 77.6 - 55.92. Let's calculate that. 77.6 - 55 = 22.6, then -0.92 = 21.68? Wait, maybe the numbers are misread. Wait, the first number is 86.51 (maybe 86.51), minus 54.35. Let's do decimal subtraction:

86.51

• 54.35

--------
32.16

Then the second one: 77.6 (maybe 77.6) minus 55.92:

77.60

• 55.92

--------
21.68

But maybe the original numbers are different. Wait, the left side has "LOW 54.35°F" and "LOW 56.92°F". Maybe the first subtraction is 86.51 - 54.35, and the second is 77.6 - 55.92? Wait, perhaps the user made a typo in writing. Let's assume we need to do the two subtractions:

First subtraction: 86.51 - 54.35

Step1: Align decimals

86.51

• 54.35

--------

Step2: Subtract column by column

• Ones place: 6 - 4 = 2
• Tens place: 8 - 5 = 3
• Tenths place: 5 - 3 = 2
• Hundredths place: 1 - 5? Wait, no, 1 is less than 5, so borrow from tenths: 5 becomes 4, 1 becomes 11. 11 - 5 = 6. Tenths: 4 - 3 = 1. Wait, no, 86.51 is 8 tens, 6 ones, 5 tenths, 1 hundredth. 54.35 is 5 tens, 4 ones, 3 tenths, 5 hundredths.

So:

Hundredths: 1 - 5, can't do, borrow from tenths: 5 tenths become 4 tenths, 1 hundredth becomes 11 hundredths. 11 - 5 = 6 hundredths.

Tenths: 4 - 3 = 1 tenth.

Ones: 6 - 4 = 2 ones.

Tens: 8 - 5 = 3 tens.

So 32.16.

Second subtraction: 77.6 - 55.92. Let's write 77.6 as 77.60 to have two decimal places.

77.60

• 55.92

--------
Hundredths: 0 - 2, borrow from tenths: 6 becomes 5, 0 becomes 10. 10 - 2 = 8 hundredths.

Tenths: 5 - 9, can't do, borrow from ones: 7 becomes 6, 5 becomes 15. 15 - 9 = 6 tenths.

Ones: 6 - 5 = 1 one.

Tens: 7 - 5 = 2 tens.

So 21.68.

But maybe the intended numbers are different. Alternatively, maybe the first number is 86.51 - 54.35 = 32.16, and the second is 77.6 - 55.92 = 21.68.

Answer:

First subtraction result: 32.16, Second subtraction result: 21.68 (assuming the numbers are 86.51 - 54.35 and 77.6 - 55.92)