Who Knows?
Adding
Subtracting
Magic
Bees?
100

-2 + 2 =?

0

100

8+8

16

100

2/3 - 1/3

1/3

100

-2 + 6 = ?

4

100

(-9)(-9)

81

200

(-2)(-8) = ?


16

200

-7.35+2.8

-4.55

200

-8 - (-10)=

2

200

7 - (-3) = ?

10

200

|-10| + |-20| =

30
300

1/2+3/4 = ?

1

300

1/2 + 2/4 =?

1

300

-12 - (-12)

0

300

4-6 =?

-2

300

Is the answer positive or negative?

(-1)(-4)(-5)(-2)

KEEP IT POSITIVE!

400

24 - (-2)

26

400

40 - 60 + 22 - 18

-11

400

|-8| - |4| = 

4

400

Rewrite this as an addition problem: 

7-9

7+(-9)

400

To divide is to 

multiply by the reciprocal

500

-|-33|

-33

500
-5/6 +4/3 =

3/6 or 1/2

500

90-(-90)-20

160!

500

-9.45+3.34

-6.11

500

-36 / 6

-6

M
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