Comparing Decimal Subtraction: Is 3.2-2.10 Equal to Its Vertical Form?

Question

Determine whether the exercise is written correctly in relation to the position of the decimal point:

Video Solution

Solution Steps

00:00 Determine if the decimal point position is correct?

00:04 We'll use long subtraction to find the position of the decimal point

00:07 In long subtraction, the decimal point must be aligned one above the other

00:10 In our exercise, the decimal point is aligned one above the other

00:15 And secondly, we can see that the number we want to subtract

00:19 is not larger than the number we want to subtract from

00:27 The number is smaller, therefore the result will be negative

00:32 And this is the solution to the question

Step-by-Step Solution

The problem requires us to verify if the subtraction exercise of the decimal numbers is written correctly, focusing on the position of the decimal points.

Step-by-step:

Step 1: Identify the given numbers, $2.10$ and $3.2$ .
Step 2: Align these numbers by their decimal points for proper subtraction.

Upon alignment, the numbers are:

$2.10$
$-3.2$ .

To correctly align them for subtraction, we can rewrite $3.2$ as $3.20$ to match the number of decimal places:

$2.10$

$-3.20$

The decimal points are aligned correctly in both numbers, confirming that the exercise is set up accurately regarding the position of the decimal point.

Thus, the answer to the problem is Yes.

Answer

Yes.

Related Subjects

Addition and Subtraction of Decimal Numbers Decimal Fractions

Question Types

Addition and Subtraction of Decimal Fractions: Identify whether the exercise is written correctly