Operations with Directed Numbers

Add/Subtract Pos

100

- 5 + 2 - 3 =

-6

200

-4+6-2=

0

300

-14-7-2=

-23

400

2/3-1/6=

1/2

500

-1/2-1/3+3/4=

-1/12

Add/Subtract Neg

100

2+(-4)=

-2

200

-4+(-3)-(+13)=

-20

300

5-(-4)-(+3)=

6

400

-17-(-5)+(-2)-(-9)=

-5

500

3/4-(-1/2)+(-1/8)=

9/8

1 1/8

Multiplication

100

3times5=

15

200

-4times3=

-12

300

-7times(-6)=

42

400

-2times(-3)times2=

12

500

1/2times(-4/5)=

-4/10

Division

100

36div4=

9

200

- 18 div 9 =

-2

300

-12div(-6)=

2

400

(-12)/4=

-3

500

24div(-2)div3=

-4

Definitions

100

Numbers less than 0 are also known as ...

Negative numbers

200

What is an integer?

A whole number which can be negative, zero or positive

300

We find the product by ...

Multiplying one number by another number

400

An operation (in mathematics) is ...

A mathematical process such as addition, subtraction, multiplication and division

500

The quotient is ...

The number found when you divide one number by another number