Solve Decimal Subtraction: Finding the Difference Between 8.4 and 5.6

Video Solution

Solution Steps

00:00 Solve

00:03 We will use long subtraction for calculation

00:06 We will place the decimal point in the appropriate position

00:09 The digit is smaller than the digit we need to subtract from

00:12 Therefore we will borrow from the next digit

00:15 The larger digit will decrease by 1, and our digit will increase by 10

00:19 Now we subtract from the larger number and place

00:32 We will continue to subtract and place accordingly

00:40 And this is the solution to the question

Step-by-Step Solution

To solve this subtraction problem involving decimals, follow these steps:

Step 1: Write the numbers $8.4$ and $5.6$ , aligning the decimal points.
Step 2: Begin subtracting from the rightmost digit (tenths).
Step 3: Perform the subtraction in the tenths column: $4 - 6$ . This requires borrowing. Borrow 1 from the whole number 8, leaving it as 7 and converting the 4 tenths into 14 tenths.
Step 4: Subtract the tenths: $14 - 6 = 8$ .
Step 5: Move to the whole number column. Subtract: $7 - 5 = 2$ .

The result of subtracting $5.6$ from $8.4$ is $2.8$ .

Therefore, the correct answer is $\boxed{2.8}$ .