Question

9. Which of the following is the representation of a decimal number? A. 1/2 B. 23 C. 33/10 D. .25

Answer 1

B because there is a dot in front of the 25 which is also known as a decimal point.

Answer 2

For this case we have that by definition, a decimal number is a number that is composed of a whole part, which can be zero, and by another lower than the unit, separated from the whole part by a point.

Examples:

0.05

1.76

According to the options given, we have:

A.
`\frac {1} {2},` it is a fraction

B. 23, is a whole number

C.
`\frac {33} {10}`, it is a fraction

D. 0.25, is a decimal number.

Answer:

Option D