Negative Numbers Flashcards

All 6 cards in this deck

True or false? $-3 > -5$

True. $-3$ is further right on the number line, so it is greater.

What is the rule for multiplying or dividing two negative numbers?

The answer is positive.
e.g. $-3 \times -4 = 12$

What is the rule for multiplying or dividing a negative number by a positive number?

The answer is negative.
e.g. $-20 \div 5 = -4$

What does subtracting a negative number do?

e.g. $6 - (-4)$

It is the same as adding: $6 + 4 = 10$.

What does adding a negative number do?

e.g. $8 + (-3)$

It is the same as subtracting: $8 - 3 = 5$.

What are the steps to find the difference between two temperatures when one is negative?

e.g. $-3\,^\circ$C and $5\,^\circ$C

1. Subtract the lower from the higher: $5 - (-3)$
2. Subtracting a negative means add: $5 + 3$
3. Difference $= 8\,^\circ$C