Rules
Addition and Division
Subtraction and Multiplication
Multiplication
Division
100
When you add two positives you (sometimes/always/never) get a positive sum.
What is always
100

12/(-4) + 8 =

5

100

(-1) - 9(-2) =

What is 17

100
(-1) x (-25) =
What is (+25)
100
(-21) / (-7) =
What is (3)
200
When you add two negatives you (sometimes/always/never) get a positive sum.
What is never
200

(-12) + (-20)/5 =

What is (-16)

200

20(-2) - 10 =

What is (-50)

200
(-25) x (+2) =
What is (-50)
200
(-144) / (-12) =
What is (12)
300
When you multiply two integers with the same sign you (sometimes/always/never) get a negative product.
What is never
300

-100/20 + 20 =

What is 15

300

(-45) - (-15)(3) =

What is 0

300
(+7) x (+9) =
What is (+63)
300
(-12) / (+2) =
What is (-6)
400
When you divide by two integers with different signs you (sometimes/always/never) get a negative product.
What is always
400

(-100) + (-60)/(-2) =

What is (-70)

400

48 - (-12)(-2) =

What is 24

400
(+9) x (-8) =
What is (-72)
400
(-56) / (+8) =
What is (-7)
500
You call both positive and negative whole numbers this.
What are integers
500

-200/(-25) + (-9)

What is (-1)

500

-15(2) - (8)(-3) =

What is (-6)

500
(-125) x (+5) =
What is (- 625)
500
(-625) / (+25) =
What is (-25)
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