# Multiplying and dividing positive and negative numbers

The rule for multiplying and dividing is very similar to the rule for adding and subtracting.

• When the signs are different the answer is negative.
• When the signs are the same the answer is positive.
Question

Calculate:

a) $$5 \times -4$$

b) $$-40 \div -8$$

a) We have $${+5}$$ and $${-4}$$. The signs are different, so the answer will be negative. So, $$+5 \times -4 = -20$$

b) We have $${-40}$$ and $${-8}$$. The signs are the same, so the answer will be positive. So, $$-40 \div -8 = 5$$

Question

Work out $$-4 \times 3$$.

$-4 \times 3 = -12$

Question

Work out $$12 \div (-4)$$.

$12 \div (-4) = -3$

Question

Work out $$(-5) \times (-6)$$.

$(-5) \times (-6) = 30$