Revise Multiplying and Dividing Integers

The answer is $\boxed{\text{8}}$.

1.2 $12 \times 2$

The answer is $\boxed{\text{24}}$.

1.3 $6 \times (-4)$

A positive number multiplied by a negative number results in a negative number.

The answer is $\boxed{\text{-24}}$.

1.4 $18 \div (-6)$

A positive number divided by a negative number results in a negative number.

The answer is $\boxed{\text{-3}}$.

1.5 $-24 \div 8$

A negative number divided by a positive number results in a negative number.

The answer is $\boxed{\text{-3}}$.

1.6 $20 \div 4$

The answer is $\boxed{\text{5}}$.

1.7 $5 \times 4$

The answer is $\boxed{\text{20}}$.

1.8 $20 \div (-5)$

A positive number divided by a negative number results in a negative number.

The answer is $\boxed{\text{-4}}$.

1.9 $-12 \div 2$

A negative number divided by a positive number results in a negative number.

The answer is $\boxed{\text{-6}}$.

1.10 $-15 \div (-3)$

A negative number divided by a negative number results in a positive number.

The answer is $\boxed{\text{5}}$.

1.11 $18 \div (-9)$

A positive number divided by a negative number results in