In each of the following, state whether the statements are true (T) or false (F).

Subtraction of rational number is commutative.

In each of the following, state whether the statements are true (T) or false (F).

Between any two rational numbers there are exactly ten rational numbers.

In each of the following, state whether the statements are true (T) or false (F).

Rational numbers are closed under addition and multiplication but not under subtraction.

In each of the following, state whether the statements are true (T) or false (F).

is smaller than –2.

In each of the following, state whether the statements are true (T) or false (F).

0 is a rational number.