Ruby and Emily

Algebra

100

What is X+15=21?

6

200

What is X/8=4

32

300

What is 12-X=10

2

400

Yx12=108

9

500

25-X=13

12

Exponents

100

7²

49

200

4²

16

300

2³

8

400

14²

196

500

4³

64

Number tree

100

30

30

Integers

100

-5x2

10

200

-3x3

9

300

-3x4

+1