Rules
Addition
Subtraction
Decimals and Fractions
Grab Bag
100
When you add two positives you (sometimes/always/never) get a positive sum.
What is always
100
(-4) + (+8) =
(+4)
100
(-1) - (-1)
What is 0
100

(1/4)-(-2/4)

3/4

100

Julie jumped off the 20ft high dive and dove down 8ft below the surface. What is the difference between her maximum and minimum heights?

28ft

200
When you add two negatives you (sometimes/always/never) get a positive sum.
What is never
200
(-12) + (-12) =
What is (-24)
200
(-20) - (+10)
What is (-30)
200

(9/10)+(-4/10)

5/10 or 1/2

200

Evaluate for x=2.5

(-x) - 4 + 4x

3.5

300
When you multiply two integers with the same sign you (sometimes/always/never) get a negative product.
What is never
300
(-50) + (-75) =
What is (-125)
300
(-45) - (-15) =
What is (-30)
300
(6/9)+(-1/2)

1/6

300

What is a rational number?

Any number that can be written as a fraction of two integers.

400
When you divide by two integers with different signs you (sometimes/always/never) get a negative product.
What is always
400
(-100) + (+25) =
What is (-75)
400
(-224) - (-25) =
What is (- 199)
400
(7/12)+(-5/6)

-1/4

400

When Mr. McBaine was in Michigan, the temperature would oftentimes rise from -15 to 18. By how many degrees would the temperature change?

33 degrees

500
You call both positive and negative whole numbers this.
What are integers
500
(-501) + (+500)
What is (-1)
500
(-5012) - (-28)
What is (-4984)
500

(-1/5)-(3/4)

-19/20

500

Give an example of an irrational number. Bonus points if you know what makes them different from rational numbers.

responses may vary.

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