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Level 1

100

2x+3y when x=4, y=5

23

200

5a-2b when a=7, b=3

29

300

3m+4n when m=6, n=2

26

400

8p-q when p=5, q=4

36

500

x+2 when x=2

4

Level 2

100

6x+2y when x=3, y=9

36

200

7a+5b when a=2, b=6

44

300

9m-3n when m=4, n=1

33

400

4p+8q when p=3, q=2

28

500

3x-20 when x=7

1

Level 3

100

3(a+b) when a=4, b=6

30

200

5(m+n)-p when m=3, n=2, p=4

21

300

4(x+y)+z when x=2, y=5, z+3

31

400

6(a+b)-c when a=3, b=4, c=5

37

500

3(x+3) when x=3

18