Answer :

To find the number that is 25% smaller than 24, we will follow these steps:

1. Determine the percentage to decrease:
25% of 24 needs to be calculated.

2. Calculate the amount to decrease:
To find 25% of 24, we multiply 24 by 0.25 (since 25% is the same as 0.25 in decimal form).
[tex]\[ 24 \times 0.25 = 6 \][/tex]
This means 25% of 24 is 6.

3. Subtract the decrease from the original number:
Subtract the calculated decrease (6) from the original number (24):
[tex]\[ 24 - 6 = 18 \][/tex]

Thus, the number that is 25% smaller than 24 is 18.

As an additional note, the decrease amount is 6, and the new number after the decrease is 18.