Answer :
To solve the subtraction
$$10 - 0.43,$$
follow these steps:
1. Rewrite $10$ as $10.00$ so that both numbers have the same number of decimal places:
$$10.00 - 0.43.$$
2. Subtract column by column starting from the rightmost digit. In the hundredths place: subtract $3$ from $0$. Since $0$ is less than $3$, borrow $1$ (which is $10$ hundredths) from the tenths place.
3. After borrowing, the hundredths column becomes $10 - 3 = 7$, and the tenths column decreases by $1$.
4. In the tenths place, you now have to subtract $4$ from the reduced digit. With proper borrowing and subtraction, the final result becomes:
$$10.00 - 0.43 = 9.57.$$
Therefore, the final answer is $\boxed{9.57}$, which corresponds to option B.
$$10 - 0.43,$$
follow these steps:
1. Rewrite $10$ as $10.00$ so that both numbers have the same number of decimal places:
$$10.00 - 0.43.$$
2. Subtract column by column starting from the rightmost digit. In the hundredths place: subtract $3$ from $0$. Since $0$ is less than $3$, borrow $1$ (which is $10$ hundredths) from the tenths place.
3. After borrowing, the hundredths column becomes $10 - 3 = 7$, and the tenths column decreases by $1$.
4. In the tenths place, you now have to subtract $4$ from the reduced digit. With proper borrowing and subtraction, the final result becomes:
$$10.00 - 0.43 = 9.57.$$
Therefore, the final answer is $\boxed{9.57}$, which corresponds to option B.
