Question

Which of the following expressions cannot be written as an integer?

-30
18
3
1.2 x 102
149
​

Answer 1

1.2 x 102

Explanation:

An integer is an whole number. It is not a fraction or a decimal.

Types of Integers

1. Positive integers e.g. 18, 3, 149

2. Negative integers e.g. -30

3. Zero integers e.g. 0

1.2 x 102 = 122.4. 122.4 is not an integer because it is not a whole number