Week 2 - Integer Operations

Integer Addition

100

What is -7 + -2 ?

-9

200

What is -2 + -4 ?

-6

300

What is -10 + 7 ?

-3

400

What is 28 + -5 ?

23

500

What is 100 + -28 + -2 ?

70

Integer Multiplication

100

What is -7 x 2 ?

-14

200

What is -3 x 5 ?

-15

300

What is (-1)(-7) ?

7

400

What is (-9) x (-1) x (1) ?

9

500

What is -10 x 2 x 3 ?

-4

Integer Rules

100

When adding two positive numbers what do you always get?

A) Positive

B) Negative

C) Nothing

A) Positive

200

When adding -7 + -13 the answer will be a

A) Positive Number

B) Negative Number

B) Negative Number

300

Multiplying or dividing two numbers with the same sign will give a ... 

A) Positive Answer

B) Negative Answer

C) Depends which Number is Greater

A) Positive Answer

400

-5 - 3 is the same as 

A) 5 + -3

B) -5 + -3

C) -5 + 3

B) -5 + -3

500

Multiplying two numbers with different signs will give a ...

A) Positive Answer

B) Negative Answer

C) Depends which Number is Greater

B) Negative Answer

negative x positive = negative

positive x negative = negative

Integer Subtraction

100

What is (-7) - 5 ?

-12

200

What is (-2) - 10 ?

-12

300

What is (-4) - (-7) ?

3

400

What is 6 - (-4) ?

10

500

What is -4 - 4 ?

-8

Integer Division

100

What is -20 / 2 ?

-10

200

What is -30 / -3 ?

10

300

What is 56 / -8 ?

-7

400

What is -5 / -5 ?

1

500

What is -104 / -8 ?

13