Level 1
3n + 6m + 2n
6m + 5n
8a + 15a + a + 9
24a + 9
21b - 11b + 10 - 2b
8b + 10
19x + 2y - 12x + 4y
7x +6y
5+7*8
61
15y + 6y + 3x + x
4x + 21y
5x + 35 + 3x + 2
8x + 37
12 + 12c - 6c + 30
6c + 42
3x -10+ x + 15
4x +5
((20-4))/2
8
20 + 10q + 3q – 4
13q + 16
32 + 12t + 16t + 8
28t + 40
x + x + x + a + a
2a + 3x
5z+2b+ 18+21z+11b
13b +26z + 18
4^2+12*(2 + 3)
76
2y + 14x – 7x + 9y
7x + 11y
2x + 7x – 6x + 8
3x + 8
5x+7 +10
5x + 17
12r + 5 + 3r − 5
15r
((5+9))/2+6
13
11x + 5f – 2x + 5 + 8
9x + 5f + 13
m + 20n + 25m + 6n - 12
26m + 26n - 12
15j + 18k + 24j - 18k
39j
4a + 12b + 6 + 10b - 2a + 10
2a + 22b + 16
(5+2^2)*10-10
80