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Wiki User
30 or -10 if the 20 is negative.
Anonymous ∙
10 plus 20 is 30.
20 + 50 + 20 + 10 = 50 = 150
It is: -10+20 = 10
2+2+2+10+5+5+5+20+20+20+20+20+20=151
10 + 15 + 20 = 45
20 + 10 + 5 = 35
10 plus 20-2 - 11 plus 3 is equal to 20.
14.95 + 20 + 10 + 2.06 = 47.01
10 + 20 = 30
1 + 10 + 20 = 31
20
10