Math worksheet providing answers for calculating algebraic expressions with given variables.

1) 2a when a = 5: 2 × 5 = 10
2) b + 7 when b = 12: 12 + 7 = 19
3) c − 5 when c = 21: 21 − 5 = 16
4) d ÷ 3 when d = 24: 24 ÷ 3 = 8
5) e + 12 when e = 19: 19 + 12 = 31
6) f − 15 when f = 100: 100 − 15 = 85
7) 7g when g = 8: 7 × 8 = 56
8) ½ h when h = 56: ½ × 56 = 28
9) i ÷ 5 when i = 20: 20 ÷ 5 = 4
10) 20 − j when j = 18: 20 − 18 = 2
11) 30 ÷ k when k = 6: 30 ÷ 6 = 5
12) l / 2 when l = 50: 50 / 2 = 25
13) 10m when m = 34: 10 × 34 = 340
14) n − 25 when n = 72: 72 − 25 = 47
15) ¼ o when o = 32: ¼ × 32 = 8
16) 4 − p when p = 0.5: 4 − 0.5 = 3.5
17) 1.5 + q when q = 2.7: 1.5 + 2.7 = 4.2
18) 3r when r = 0.7: 3 × 0.7 = 2.1
19) s − 0.7 when s = 3: 3 − 0.7 = 2.3
20) ½ t when t = 7: ½ × 7 = 3.5