Flashcards in Negative Numbers Deck (18):

0

## Define a negative number:

###
A negative number is a number below zero. It is written with a - in front of it.

Ex:-5

On a number line, negative numbers are written like positive numbers, but in decreasing order.

-5 -4 -3 -2 -1 0 1 2 3 4 5

1

## How do you add negative numbers?

###
When adding a negative number to a positive number, you always go nearer the positive side.

Ex:-13+5=-8

-3+6=3

When adding two negative numbers, you always go further into the negative side.

Ex:-2+-5=-7

2

## How do you substract negative numbers?

###
When substracting a negative number from a positive number, the minus cancels out and you just add two positive numbers.

Ex:14--6=20

When substracting a positive number from a negative number,you go further into the negative side.

Ex:-13-6=-19

When substracting a negative number from a negative number, you go closer to the positive side.

Ex:-15--16=1

3

## How do you multiply negative numbers?

###
When multiplying negative numbers with positive numbers, you always get a negative number.

Ex:-3x4=-12

When multiplying negative numbers with negative numbers, you always get a positive number.

Ex:-3x-4=12

4

## How do you divide negative numbers?

###
When dividing negative numbers from positive numbers, you always get a negative number.

Ex:16:-4=-4

When dividing positive numbers from negative numbers, you always get a negative number.

Ex:-16:4=-4

When dividing negative numbers from negative numbers, you always get a positive number.

Ex:-16:-4=4

5

## -5+-5=?

### -10

6

## -9+6=?

### -3

7

## -15--5=?

### -10

8

## -15-14=?

### 29

9

## 15--7=?

### 22

10

## 12x-5=?

### -60

11

## -12x-5=?

### 60

12

## 70:-35=?

### -2

13

## -70:-35=?

### 2

14

## -70:35=?

### -2

15

## Give fraction equivalent of -12:3.

### There is no fraction equivalent. Negative numbers cannot be put into fractions.

16

## -5:2=?

###
-2.5

Negative numbers can be decimal.

17