Solve Decimal Subtraction: 27.4 - 10.5 Step-by-Step

Question

00:00 Solve

00:03 We'll start subtracting from right to left

00:06 The digit is too small for subtraction, so we'll borrow from the next one

00:09 The next digit will decrease by 1, and our digit will increase by 10

00:13 Now we'll subtract from the larger number

00:18 We'll calculate and substitute accordingly

00:26 We'll continue to subtract, calculate and substitute accordingly

00:44 And this is the solution to the question

Let's solve the subtraction problem $27.4 - 10.5$ step-by-step:

Step 1: Align the numbers vertically by the decimal point:

$\begin{aligned} 27.4 \\ -10.5 \\ \hline \end{aligned}$

Step 2: Start subtracting from the rightmost digit, moving to the left.

$\begin{aligned} 26.14 \\ -10.50 \\ \hline \end{aligned}$

Therefore, the result of $27.4 - 10.5$ is $16.9$ .

The correct answer is $\boxed{16.9}$ .

16.9