Question

The value of $57.32+64.123-21.567$ is

Answer 1

Let's solve:
$57.32+64.123-21.567=(57.32+64.123)-21.567$

Let's add $57.32+64.123:$

Step 1: Align the decimal numbers according to their place values one below the other.
$TO.thth$
$57.320+64.123--------$

Step 3: Add each column of digits, starting on the right.

If the sum of a column is more than 10, carry digits to the next column on the left
Finally, place the decimal point of the sum vertically below the other decimal points.
$\therefore 57.32+64.123=121.443$

Now, $(57.32+64.123)-21.567=121.443-21.567$

Let's subtract $121.443-21.567:$

Step 1: Align the decimal numbers according to their place values one below the other.
$HTO.thth$
$121.443-21.567----------$

Step 2: Subtract the numbers in the column from the right.

If needed, borrow a group of ten from the column to the left.
Finally, place the decimal point of the sum vertically below the other decimal points
$\therefore (57.32+64.123)-21.567=99.876$