Adding
Subtracting
Multiplying
Dividing
Mystery
100

x+2=8

x=6

100

y-4=9

y=13

100

2x=14

x=7

100

x/3=21

x=63

100

What is Ms. Mackay's favorite color?

Purple

200

7+y=13

y=6

200

x-45=40

x=85

200

3a=18

a=6

200

y/7=2

y=14

200

2(3x+5)

6x+10

300

-3+w=10

w=13

300

w-(-7)=12

w=5

300

-5x=15

x=3

300

m/-2=-2

m=4

300

3.25+x=14.75

x=11.50

400

x+(-5)=3

x=8

400

x-(-18)=-12

x=-20

400

12x=-36

x=-3

400

w/5=-15

x=-45

400

What makes up about 75% of your brain?

Water

500

m+(-10)=-13

m=-3

500

m-14=-6

m=8

500

(1/4)x=7

x=28

500

m/(1/3)=9

m=27

500

True or false: It is possible to sneeze with your eyes open.

False
M
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