rational numbers and integers

How do you add integers

• signs stay the same

• you add them normaly

• you add (-) signs

what is a rational numbers

• A number that can be a fraction

• A negative integer

• A decimal

Subtracting integer

• Change to adding the oppisite

• add a fraction

• divide a fraction

Adding Integers

• Add absolute and keep sign

• divide absolute and keep sign

• multiply abosolute and keep sign

which one is a rational number

• 0.44444444

• 0.543

• 0.555544441

Which one eqauls -8.1

• -2.5+(-5/6/10)

• 5.2- 1/2/5

• 10.1-2.2

What is -0.4 divided by 0.25

• -1.6

• -1.4

• -1.8

What is 0.7 divided -1/1/6

• -0.6

• 0.7

• -0.5

when dividing integers you do what

• If the signs of the dividend and divisor are the same the quotient is positive

• If the signs of the dividend and divisor are diffrent the quotient is negative

Multiply integers you do what

• If the sign of the factors are the same the product is positive

• If the sign is factors are the same it is negative