B's and F's

b's

100

2 x b

b=2

4

200

2 x 3 x b

b = 6

36

300

2 + 1 + 7 - b

b= 5

5

400

29 - b

b = 3

26

500

23 + 65 - b

b= 65

23

f's (remember, add 2 at the end

100

2 x f 

f = 7

16

200

22 - 24 + f

f = 2

2

300

4 - 3 + f

f = 43

46

400

2 x 3 + f

f = 4

12

500

2 x 5 + 5 + f

f = 5

22

b's

100

2 + 2 + b

b = 4

8

200

3 x 3 + 3 + b

b = 3

15

300

2 - 2 + b

b = 3

3

400

1 + 2 + 3 - b

 b = 4

2

500

2 + 11 - b

b = 3

10

f's

100

2 + 45 - 45 + f

4

200

12 + 12 + f

f = 24 

50

300

300 - 200 + f

f = 100

202

400

3 x f 

f = 6

20

500

90.0 + f - f

f = 2.0

90.2