Evaluating Expression.

1) (a - 27) + 72 when a = 32 2) (16 + y) - (x + 3) when x = 13, y = 21

3) a - 12 when a = 52 4) a + b when a =22 , b = 68

5) (h + 19) - (11 - h) when h = 7 6) (x - 7) + 23 when x = 19

7) 36 - m when m = 23 8) 17 + 9

9) (a + b) - 4 when a = 9, b = 3 10) x + z when x =32 , z = 12

11) (p + 9) - 12 when p = 10 12) 49 - b when b = 14

13) c + 12 when c = 9 14) (11 + y) - (x + 3) when x = 12, y = 5

15) c + 83 when c = 9 16) (a - 13) + 7 when a = 15

17) 10 + 9 18) n + 18 when n = 25

19) (9 - x) + (17 - x) when x = 5 20) (x - z) + (32 - 14) when x = 22,z = 8

77	21
40	90
22	35
13	26
8	44
7	35
21	1
92	9
19	43
16	32

Answers: