Question

вычислите удобным способом 2+3+8+7.14-(4+5);19-1-8;8+(2+5);(7+4)-3;4+3+2+6; срочно плиз

Answer 1

2+3+8+7 = 2+8+3+7 = 20
14-(4+5)= 14-4-5 = 5
19-1-8 = 19-(8+1)=10
8+(2+5) = 8+2+5 = 15
(7+4)-3 = 7-3+4=8
4+3+2+6 = 4+6+3+2 = 15